Method for removing stench in building

Abstract

To provide a method for more safely removing an offensive smell without requiring large-scale mechanical equipment.SOLUTION: A method for removing a strange odor in a building includes a first step of disinfecting a strange odor region in the building, a second step of removing a source of the strange odor in the strange odor region after the first step, a third step of coating a portion from which the source of the strange odor has been removed with a resin coating material after the second step, a fourth step of spraying hot water at a predetermined temperature to the strange odor region after the third step, and a fifth step of spraying a deodorizing, neutralizing, and decomposing agent to the strange odor region after the fourth step.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for removing odors in a building. [Background technology]

[0002] Examples of odors (bad smells) that have traditionally been difficult to remove within buildings include the smell of fire caused by charred remains or adhered soot, the putrid smell caused by human or animal corpses or excrement left unattended for a long period of time, mold, tobacco, tar, fragrances, second-class petroleum odors, spices, and odors caused by specified malodorous substances (22 substances).

[0003] If left untreated, the former can cause health problems such as headaches, dizziness, nausea, and sore throats. As for the latter, the decaying body fluids, blood, excrement, and urine from the carcasses (sources of foul odors) can seep into the building's structural elements, such as floors, walls, pillars, and ceilings, making it even more difficult to remove the foul odor.

[0004] As a technology related to the present invention, for example, Patent Document 1 discloses a method for deodorizing a room where a deceased person and / or animal has been left unattended, which comprises a filth cleanup operation to clean up filth consisting of one or more selected from body fluids, feces, and urine, a dismantling operation to dismantle the areas where the filth is attached before an ozone fumigation operation, an ozone fumigation operation to spray ozone into the room after the filth cleanup operation, a covering operation to cover the areas dismantled in the dismantling operation with an oil-based primer paint after the ozone fumigation operation, and a coating operation to apply a resin material containing a hardener to the interior walls where the filth remains after the covering operation.

[0005] Patent Document 2 also discloses a building fumigation method that includes a first step of disinfecting an odorous area in a building, a second step of removing the odor source in the odorous area by polishing and / or cleaning, a third step of covering the area from which the odor source has been removed with a resin paint, and a fourth step of fumigating the odorous area with hydroxyl radicals generated by a hydroxyl radical generator (excluding cases where ozone is generated by an ozone gas generator, sent into the space, and generated by reaction with moisture in the space), and the first step to the fourth step are performed in the order listed, and another task is performed in the odorous area in parallel in the fourth step. A method for removing odors from an object is disclosed. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6723569 [Patent Document 2] Patent No. 7429340 Summary of the Invention [Problem to be solved by the invention]

[0007] According to the above-mentioned Patent Document 1, deodorization can be performed using an ozone generator. Also, according to the above-mentioned Patent Document 2, deodorization can be performed using a hydroxyl generator. However, these methods require large-scale machinery and equipment, and electricity is required. In addition, ozone gas has adverse effects on the human body, and hydroxyl generators also generate a small amount of ozone gas, which also has adverse effects on the human body.

[0008] An object of the present invention is to provide a method for removing offensive odors more safely without requiring large-scale machinery and equipment. [Means for solving the problem]

[0009] The method for removing odors within a building according to the present invention is characterized by comprising: a first step of disinfecting an odorous area within the building; a second step of removing the source of the odor from the odorous area after the first step; a third step of covering the area from which the odor source has been removed with a resin paint after the second step; a fourth step of spraying hot water at a predetermined temperature into the odorous area after the third step; and a fifth step of spraying a deodorizing, neutralizing, and decomposing agent into the odorous area after the fourth step.

[0010] In the method for removing nasty odors from inside a building according to the present invention, the predetermined temperature is preferably 35 to 45°C.

[0011] Furthermore, in the method for removing foul odors within a building according to the present invention, it is preferable to include a sixth step, which is inserted between the second step and the third step after the second step if the foul odor source remains within the structure of the building, in which the structure is demolished to expose the foul odor source remaining within the structure, and a seventh step, which is inserted between the sixth step and the third step after the sixth step, in which the exposed foul odor source is removed. [Effects of the Invention]

[0012] According to the present invention, no large-scale machinery or equipment is required and offensive odors can be removed more safely. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a flowchart showing the steps of a method for removing unpleasant odors from inside a building in an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following, similar elements in all drawings will be designated by the same reference numerals, and duplicate explanations will be omitted. Furthermore, in the description below, previously described reference numerals will be used as necessary.

[0015] FIG. 1 is a flowchart showing the steps of a method for removing offensive odors in a building according to an embodiment of the present invention.

[0016] The method for removing odors within a building according to this embodiment comprises a first step of disinfecting an odorous area within the building, a second step of removing the odor source from the odorous area after the first step, a third step of covering the area from which the odor source has been removed with a resin paint after the second step, a fourth step of spraying hot water at a predetermined temperature onto the odorous area after the third step, and a fifth step of spraying a deodorizing, neutralizing, and decomposing agent onto the odorous area after the fourth step.

[0017] After the offensive odor has been significantly reduced by steps 1 to 3, the area with the offensive odor is sprayed with hot water at 35 to 45°C, preferably 40°C (step 4). The 40°C hot water is preferably sprayed by a cleaning worker using a pressure-accumulating sprayer.

[0018] After the fourth step, a deodorizing, neutralizing, and decomposing agent is sprayed onto the area where the hot water has been sprayed (the sixth step). The deodorizing, neutralizing, and decomposing agent is preferably sprayed by a cleaning worker using a pressure-type sprayer. The deodorizing, neutralizing agent is a liquid that converts odor-causing components into odorless components through a chemical reaction.

[0019] Deodorizing neutralizing decomposition agents cause a chemical reaction between odorous substances and deodorizing ingredients, turning them into odorless substances. Deodorizing neutralizing decomposition agents also neutralize acidic odor molecules with alkalinity, and alkaline odor molecules with acidity. By chemically decomposing in a neutral state, they break down the bonds in the chemical composition of odorous substances and deodorize them. Through these reactions, deodorizing neutralizing decomposition agents effectively act on the odor molecules that are the source of the odor.

[0020] Deodorizing neutralizing decomposition agents are thought to cause the following two main reactions: <Chemical reaction> The malodorous substance and deodorant ingredients undergo a chemical reaction, turning them into an odorless substance. <Counteracting effect> The malodorous substances and deodorant ingredients interfere with each other, making the odor inaudible.

[0021] The deodorizing neutralizing decomposition agent is made from plant-derived ingredients, and the plant-derived deodorizing ingredients react with functional groups such as ammonia and hydrogen sulfide to decompose and eliminate odors. This makes it environmentally friendly and safe for the human body. Furthermore, since it does not contain surfactants, it does not leave a sticky feeling.

[0022] Furthermore, the deodorizing, neutralizing, and decomposing agent has passed metal corrosion tests, textile bleaching tests, oral toxicity tests, pesticide residue detection tests, and toxic heavy metal detection tests, allowing cleaning workers to deodorize safely. Furthermore, since there is no need to invest in equipment such as ozone generators or hydroxyl generators, anyone can easily deodorize on a low budget.

[0023] In the fourth step, pores are opened on the surface of the building material (gypsum board, wood, concrete) where hot water at 40°C has been sprayed. By carrying out the fifth step after the fourth step, the plant-derived deodorizing, neutralizing, and decomposing agent is sprayed on the opened surface of the building material, and the osmotic pressure generated by this is used to neutralize and decompose the nucleus (DNA) that is the source of the odor, thereby eliminating the odor.

[0024] By going through the fifth step, it is possible to eliminate unpleasant odors within a building while reducing damage to people, animals, plants, leather products, electrical appliances, etc. In addition, cleaning workers no longer need to take shelter after spraying hot water and deodorizing, neutralizing, and decomposing agents, so they can perform other tasks in parallel, shortening the work time.

[0025] In this specification, "disinfection" (killing pathogens and preventing infection (Kojien)) includes the meanings of "sterilization" (killing pathogens such as bacteria (Kojien)), "disinfection" (removing bacteria (Kojien)), and "sterilization" (creating a sterile state by heat, chemicals, etc. (Kojien)).

[0026] In this embodiment, there are no particular limitations on the odors that are difficult to remove within a building, and examples include fire odors caused by charred remains and adhering soot from a fire (including small fires), putrid odors caused by human or animal corpses or excrement left unattended for a long period of time, mold odors, tobacco odors, tar odors, fragrance odors, second-class petroleum odors, spice odors, odors caused by specified malodorous substances (22 substances), and the like.

[0027] In this embodiment, a method for deodorizing a typical fire odor caused by charred or adhered soot in a fire property and a putrid odor caused by human or animal carcasses or excrement left in an accident property for a long time will be disclosed. In addition, in this embodiment, there is no particular limitation on the type of building, and examples include apartment complexes such as condominiums and apartments, detached houses, commercial buildings, office buildings, warehouses, hospitals, gymnasiums, arena facilities, and accommodation facilities.

[0028] (1) In the case of a fire smell from a property on fire <First step (S1): Disinfection> In a fire property, not only does the smell of fire linger, but mold can also grow and spread in the fire extinguishing water. Therefore, to ensure the safety of cleaning workers, the method for removing malodor from a building of this embodiment includes a first step of disinfecting the malodor area in the building. In the case of a fire property, the malodor area may include the area where the fire extinguishing water was sprayed.

[0029] The disinfectant used for disinfection is not particularly limited as long as it is one generally used for disinfection, and examples thereof include aqueous solutions of compounds with oxidizing power, such as stabilized chlorine dioxide. The method of spraying the disinfectant is not particularly limited, and it may be sprayed over the entire odorous area in the building, or may be sprayed intensively on the source of the odor.

[0030] In the case of a fire odor from a property on fire, the method for removing odors from a building according to this embodiment may further include a step of dismantling or removing household goods in the odor area before the first step, which allows the subsequent steps to be carried out smoothly.

[0031] <Second step (S2): Removal> The method for removing an offensive odor in a building of this embodiment includes a second step of removing the source of the offensive odor in the offensive odor area, following the first step.

[0032] Examples of sources of the malodor of a fire property include charred remains and adhered soot. There are no particular limitations on the method for removing the malodor source, and for example, a cleaning agent may be sprayed mainly on the area where the malodor source is attached, and then the malodor source may be removed by polishing. There are no particular limitations on the areas from which the malodor source is removed, and examples include floors, earthen floors, walls, pillars, ceilings, concrete frameworks, floor base materials, wall base materials, pillar base materials, ceiling base materials, etc. within the building.

[0033] The cleaning agent is not particularly limited, but for example, using ethanol, alkaline cleaning agents, or acidic cleaning agents can simultaneously disinfect the area sprayed with the cleaning agent. It is preferable for the cleaning agent to contain an abrasive such as Scotch-Brite (manufactured by 3M) because this more effectively removes odor sources. Since dripping of the cleaning agent can be difficult to remove if it adheres to components such as floors, walls, pillars, and ceilings (e.g., wood, tile, plasterboard, resin, etc.), it is more preferable to include a thickener such as butyl diglycol, which can slow down dripping. The polishing method is not particularly limited, but conventional electric polishing with a disc sander is not very preferable because it may damage the concrete structure or cause hair cracks.

[0034] When proteins or lipids are attached as the source of the offensive odor, the method for removing offensive odors from buildings of this embodiment may further include a step of cleaning the areas where the proteins or lipids are attached using a cleaning agent containing a decomposing enzyme such as protease or lipase between the first and second steps. If the areas where the proteins or lipids are attached are concrete, using an acidic cleaning agent may cause efflorescence, making removal difficult, so an alkaline cleaning agent is preferred.

[0035] <Third step (S3): Coating> The method for removing offensive odors from buildings in this embodiment includes a third step following the second step, in which the area from which the offensive odor source has been removed is coated with a resin paint. The third step prevents the return of odors remaining from the first and second steps due to moisture, humidity, etc.

[0036] The resin paint used for coating is not particularly limited, and examples thereof include one or more types selected from organic resin paints such as acrylic resin paints, epoxy resin paints, urethane resin paints, and fluororesin paints, water-based resin paints, and powder resin paints containing cement and an admixture liquid. The coating method is not particularly limited, and examples thereof include roller coating, brush coating, and spray coating.

[0037] <Fourth step (S4): Spray with 40°C hot water> The method for eliminating offensive odors in a building in this embodiment includes a fourth step following the third step, in which hot water at 40°C is sprayed onto the area where the offensive odor is present. The reason why a hot water temperature of 40°C is appropriate is that the temperature and humidity range in which protein-based putrid odors (from people, garbage, and pets) are easily detected is an environment of 30°C or higher and humidity of 60% or higher.

[0038] An environment with a temperature of 30°C or higher and a humidity of 60% or higher is the temperature and humidity of summer, and the reason why solitary deaths are more likely to be discovered in summer is because of the relationship between the temperature and humidity. Also, cleaning protein-based contaminated areas is easier in summer than in winter. This is because this is the temperature range in which lipids are easily neutralized and decomposed.

[0039] Hot water at 40°C can open holes in the surface of building materials (gypsum board, wood, concrete). Hot water above 50°C can harden or deteriorate the gaskets of pressure-type sprayers, so temperatures around 40°C are best. While a water temperature of 40°C is optimal, a temperature between 35 and 45°C will produce the same effect. In summer, indoor temperatures can reach 40-50°C, and in this case, spraying water at 20-30°C will produce the same effect.

[0040] Although electricity is required to boil water at 40°C, temporary power supply is possible outside the workroom. In this case, there is no need for large-scale machinery as in Patent Documents 1 and 2, and no need for a constant power source.

[0041] <Fifth step (S5): Spraying deodorant> The method for eliminating offensive odors in a building according to this embodiment includes a fifth step following the fourth step, in which a deodorizing, neutralizing, and decomposing agent is sprayed into the area where the offensive odor is present. Conventional deodorizers do not eliminate the source of the odor, but rather temporarily eliminate the odor by overwriting the odor's scent. In contrast, a deodorizing, neutralizing and decomposing agent neutralizes and decomposes the nucleus (DNA) that is the source of the odor, thereby eliminating the odor. In other words, the deodorizing effect continues as long as there is no new source of the odor.

[0042] Deodorizing neutralizing decomposition agents are made from plant-derived ingredients, and the plant-derived deodorizing ingredients react with functional groups such as ammonia and hydrogen sulfide to decompose and eliminate odors. Deodorizing neutralizing decomposition agents cause a chemical reaction between odorous substances and deodorizing ingredients, turning them into odorless substances. Deodorizing neutralizing decomposition agents also neutralize acidic odor molecules with alkalinity, and alkaline odor molecules with acidity. By chemically decomposing in a neutral state, they break down the bonds in the chemical composition of odorous substances and deodorize them.

[0043] After the odor has been significantly reduced through steps 1 to 4, the fourth step involves spraying a deodorizing, neutralizing, and decomposing agent into the odorous area, which reduces damage to the human body, animals and plants, leather products, electrical appliances, etc., while eliminating fire odors and viruses remaining in the building.

[0044] In this embodiment, a deodorizing, neutralizing, and decomposing agent is sprayed in addition to hot water at 40°C. Hot water at 40°C can open pores in the surface of building materials (gypsum board, wood, and concrete). In addition, the osmotic pressure generated by using hot water and a plant-derived deodorizing, neutralizing, and decomposing agent can be used to effectively deodorize areas with unpleasant odors.

[0045] Unlike deodorizing methods that primarily use deodorizers, this embodiment uses a large amount of hot water, significantly reducing the amount of deodorizer used and being environmentally friendly. The deodorizing neutralizing decomposition agent is composed of plant-derived ingredients, and the plant-derived deodorizing ingredients react with functional groups such as ammonia and hydrogen sulfide to decompose and deodorize. Furthermore, the deodorizing neutralizing decomposition agent has passed metal corrosion tests, fiber bleaching tests, oral toxicity tests, pesticide residue detection tests, and toxic heavy metal detection tests, thereby achieving the remarkable effect of allowing those engaged in deodorizing work to perform the work safely. Furthermore, this embodiment eliminates the need for capital investment in equipment such as ozone generators or hydroxyl generators, as shown in Patent Documents 1 and 2, thereby offering the advantage of allowing anyone to easily deodorize on a low budget.

[0046] (2) In the case of putrid odors from the property where the accident occurred <First step (S1): Disinfection> In accident-prone properties, various pests, bacteria, and viruses may occur and spread in the source of the odor. Therefore, in order to ensure the safety of cleaning workers, the method for removing odors in buildings of this embodiment includes a first step of disinfecting the odor-causing area in the building.

[0047] The disinfectant used for disinfection is not particularly limited as long as it is one generally used for disinfection, and examples thereof include aqueous solutions of compounds with oxidizing power, such as stabilized chlorine dioxide. The method of spraying the disinfectant is not particularly limited, and it may be sprayed over the entire odorous area in the building, or may be sprayed intensively on the source of the odor.

[0048] <Second step (S2): Removal> The method for removing an offensive odor in a building of this embodiment includes a second step of removing the source of the offensive odor in the offensive odor area, following the first step.

[0049] Sources of odors in accident-prone properties include, for example, the putrid odor that occurs when human or animal carcasses or excrement are left for a long period of time. There are no particular restrictions on the method for removing the odor source, and for example, the odor source may be removed by spraying a cleaning agent mainly on the area where the odor source is attached, and then cleaning.

[0050] There are no particular limitations on the locations from which the source of the malodor is removed, and examples include floors, dirt floors, walls, pillars, ceilings, concrete framework, floor base materials, wall base materials, pillar base materials, ceiling base materials, etc. There are no particular limitations on the cleaning agent, but decayed body fluids and blood from corpses (sources of malodor) are viscous and difficult to remove if they adhere to the materials (for example, wood, tiles, plasterboard, resin, etc.) that make up floors, walls, pillars, ceilings, etc.

[0051] Therefore, it is preferable to use a cleaning agent containing, for example, protease or lipase, or a cleaning agent containing enzymes that decompose proteins or lipids, as these can decompose and remove the source of the offensive odor.If the source of the offensive odor is attached to concrete, using an acidic cleaning agent may cause efflorescence, making removal difficult, so an alkaline cleaning agent is preferable.

[0052] <Third step (S3): Coating> The method for removing offensive odors from buildings in this embodiment includes a third step following the second step, in which the area from which the offensive odor source has been removed is coated with a resin paint. The third step prevents the return of odors remaining from the first and second steps due to moisture, humidity, etc.

[0053] The resin paint used for coating is not particularly limited, and examples thereof include one or more types selected from organic resin paints such as acrylic resin paints, epoxy resin paints, urethane resin paints, and fluororesin paints, water-based resin paints, and powder resin paints containing cement and an admixture liquid. The coating method is not particularly limited, and examples thereof include roller coating, brush coating, and spray coating.

[0054] <Fourth step (S4): Spray with 40°C hot water> The method for eliminating offensive odors in a building in this embodiment includes a fourth step following the third step, in which hot water at 40°C is sprayed onto the area where the offensive odor is present. The reason why a hot water temperature of 40°C is appropriate is that the temperature and humidity range in which protein-based putrid odors (from people, garbage, and pets) are easily detected is an environment of 30°C or higher and humidity of 60% or higher.

[0055] An environment with a temperature of 30°C or higher and a humidity of 60% or higher is the temperature and humidity of summer, and the reason why solitary deaths are more likely to be discovered in summer is because of the relationship between the temperature and humidity. Also, cleaning protein-based contaminated areas is easier in summer than in winter. This is because this is the temperature range in which lipids are easily neutralized and decomposed.

[0056] Hot water at 40°C can open pores in building material surfaces (gypsum board, wood, concrete). Hot water above 50°C can harden or deteriorate the gaskets of pressure-type sprayers, so temperatures around 40°C are best. While a water temperature of 40°C is optimal, a temperature between 35 and 45°C will produce the same effect. In summer, indoor temperatures can reach 40-50°C, and in this case, spraying water at 20-30°C will produce the same effect.

[0057] Although electricity is required to boil water to 40°C, temporary power supply is possible outside the workroom, and there is no need for large-scale mechanical equipment as in Patent Documents 1 and 2, nor is there a need for a constant power source.

[0058] <Fifth step (S5): Spraying deodorant> The method for eliminating offensive odors in a building according to this embodiment includes a fifth step following the fourth step, in which a deodorizing, neutralizing, and decomposing agent is sprayed into the area where the offensive odor is present. Conventional deodorizers do not eliminate the source of the odor, but instead temporarily eliminate it by overwriting the odor's scent. In contrast, a deodorizing, neutralizing and decomposing agent neutralizes and decomposes the nucleus (DNA) that is the source of the odor, thereby eliminating the odor. In other words, the deodorizing effect continues as long as there is no new source of the odor.

[0059] Deodorizing neutralizing decomposition agents are made from plant-derived ingredients, and the plant-derived deodorizing ingredients react with functional groups such as ammonia and hydrogen sulfide to decompose and eliminate odors. Deodorizing neutralizing decomposition agents cause a chemical reaction between odorous substances and deodorizing ingredients, turning them into odorless substances. Deodorizing neutralizing decomposition agents also neutralize acidic odor molecules with alkalinity, and alkaline odor molecules with acidity. By chemically decomposing in a neutral state, they break down the bonds in the chemical composition of odorous substances and deodorize them.

[0060] After the odor has been significantly reduced through steps 1 to 4, the fifth step involves spraying a deodorizing, neutralizing, and decomposing agent into the odorous area, which can remove fire odors and viruses remaining in the building while reducing damage to the human body, animals and plants, leather products, electrical appliances, etc.

[0061] In accident-affected properties, putrefactive body fluids, blood, excrement, urine, etc. (sources of foul odors) from corpses may seep into the building's structural elements, such as floors, walls, pillars, and ceilings, and the source of contamination may not be completely removed in step 2. In this case, the method for removing foul odors from buildings of this embodiment preferably includes a sixth step between steps 2 and 3, in which the structure is dismantled to expose the source of the foul odor that has seeped into the structure, and a seventh step, in which the exposed source of the foul odor is removed.

[0062] <Sixth Step (S6): Dismantling and Exposure> There are no particular limitations on the structures to be demolished, and examples include surface materials (wooden flooring, tatami mats, tiles, carpets, cushion flooring, etc.) that cover floors, walls, pillars, ceilings, etc. There are no particular limitations on the building structures (underlying materials) to which odor sources are attached that are exposed by demolition, and examples include plywood, concrete, mortar, steel plates, gypsum boards, beams, joists, joist supports, etc.

[0063] <Seventh step (S7): Removal> There are no particular limitations on the method for removing the source of the odor, and for example, the source of the odor may be removed by spraying a cleaning agent mainly on the area where the source of the odor is attached, and then cleaning. There are no particular limitations on the cleaning agent, but the decayed body fluids and blood from the carcass (sources of the odor) are viscous and difficult to remove if they adhere to materials (e.g., wood, tiles, plasterboard, resin, etc.) that make up the floor, walls, pillars, ceiling, etc.

[0064] Therefore, it is preferable to use a cleaning agent containing, for example, protease or lipase, or a cleaning agent containing enzymes that decompose proteins or lipids, as these can decompose and remove the source of the offensive odor.If the source of the offensive odor is attached to concrete, using an acidic cleaning agent may cause efflorescence, making removal difficult, so an alkaline cleaning agent is preferable.

[0065] If the source of the offensive odor is attached to household goods such as futons, clothing, tatami mats, daily necessities, electrical appliances, etc., the second step or the seventh step may further include a step of sealing and packaging or removing the household goods to which the offensive odor source is attached after removing the source of the offensive odor by washing. The material used for the sealing and packaging is preferably polyethylene or polyvinyl chloride to prevent the dispersion of the source of the offensive odor, pests, bacteria, etc., and the thickness is preferably 0.05 mm or more. [Explanation of symbols]

[0066] S1 first step, S2 second step, S3 third step, S4 fourth step, S5 fifth step, S6 sixth step, S7 seventh step.

Claims

1. a first step of disinfecting odorous areas in a building; a second step of removing the off-odor source in the off-odor area after the first step; a third step of coating the area from which the odor source has been removed with a resin paint after the second step; After the third step, a fourth step of spraying hot water at a predetermined temperature into the unpleasant odor area; a fifth step of spraying a deodorizing, neutralizing, and decomposing agent into the offensive odor area after the fourth step; A method for removing unpleasant odors in a building, comprising:

2. The method for removing unpleasant odors from a building according to claim 1, A method for removing unpleasant odors in a building, characterized in that the predetermined temperature is 35 to 45°C.

3. The method for removing unpleasant odors from a building according to claim 1, A sixth step is inserted between the second step and the third step if the odor source remains in the structure of the building after the second step, and includes dismantling the structure to expose the odor source remaining in the structure; a seventh step, which is inserted after the sixth step and between the sixth step and the third step, for removing the exposed off-odor source; A method for removing unpleasant odors in a building, comprising:

Images