105 results about "Indoor air pollutants" patented technology

Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room.

The invention relates to a nanometer negative ion environmental-protection coating, which is characterized by being prepared from the following components in parts by weight: 10 to 30 parts of emulsion, 10 to 50 parts of deionized water, 1 to 5 parts of negative ion additive, 15 to 25 parts of titanium dioxide, 0.5 to 5 parts of accessory ingredient, and 1 to 15 parts of filler. When being coated in any indoor site, the nanometer negative ion environmental-protection coating not only achieves a decorative effect, but also can durably and effectively adsorb indoor air pollutants, releases a large number of negative oxygen ions at the same time for cleaning air, and builds a healthy environment of a natural air anion bar indoors completely for comprehensively caring life health of people. The nanometer negative ion environmental-protection coating provided by the invention is beneficial to durably improving the indoor environment, purifying indoor air, bacterium-resisting, disinfecting, purifying volatile organic cancerogens such as formaldehyde, methylbenzene, benzene, sulphur and ammonia indoors, and removing peculiar smells such as stinks, musty taste and smoke flavor; can durably release the negative oxygen ions for building the natural air anion bar indoors, and has a health-care effect for making people healthier; can effectively adsorb for a long time and settle particulate pollution of PM2.5 (Particulate Matter2.5) entering indoor from outdoor so as to enable people to escape from an outdoor haze air environment.

Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room.

The invention discloses a room temperature formaldehyde catalytic material and a preparation method thereof. The preparation method includes: subjecting formaldehyde removal functional powder, a molecular sieve, a structural bonding assistant, a structural lubricating assistant and deionized water to material mixing, kneading, extrusion forming, drying and roasting, thus obtaining the cylindrical particle room temperature formaldehyde catalytic material. The room temperature formaldehyde catalytic material provided by the invention converts indoor air pollutant formaldehyde into harmless water and carbon dioxide under the catalytic oxidation effect of a purification material, and does not produce secondary pollution. Under room temperature conditions, the formaldehyde catalytic material has a good purification effect on high concentration and low concentration formaldehyde, and a 1h formaldehyde purifying rate can reach more than 98%. In addition, the room temperature formaldehyde catalytic material also has good efficacy of purifying ammonia and hydrogen sulfide and removing peculiar smell, is convenient to use, and the preparation process is simple and is easy to operate, and the needed raw materials have stable properties and are environment-friendly, and do not cause environmental pollution.

The invention discloses an indoor environment comfort level intelligent adjusting system based on edge computing. The indoor environment comfort level intelligent adjusting system comprises an environment data acquisition module, an edge equipment module, an environment adjustment execution module, a cloud platform management module and a mobile terminal module, and intelligent adjustment of the indoor environment comfort level can be achieved so that the optimal comfort level of a human body can be achieved. The indoor environment air quality is automatically improved, the indoor air pollutant concentration is reduced, the indoor environment comfort level is improved, the problems that in the prior art, the intelligent degree is low and the function is simplex in the indoor environment adjusting process are solved, and meanwhile energy consumption of the intelligent adjusting system is reduced. In addition, the computing task is processed through local edge computing, the delay of a computing system is reduced, the data transmission bandwidth is reduced, the pressure of a cloud computing center is relieved, and the data security and privacy of the system are improved.

The invention discloses a catalyzation method for simultaneously removing aldehydes and benzene-series pollutants at room temperature, and belongs to the technical field of indoor air purification. The method comprises the following steps: putting a catalyst which is prepared by loading a noble metal to a molecular sieve carrier into an environment with aldehydes and benzene series; completely oxidizing aldehyde pollutants into CO2 and H2O in a room temperature stage; meanwhile, storing the benzene series on the catalyst; after the catalyst reaches or closes to saturation, heating the catalyst which stores the benzene series, wherein the heating temperature range is not less than 100 DEG C, and the optimal range of the regeneration temperature is 150 to 200 DEG C, the stored benzene series are completely converted into the CO2 and the H2O, and the catalyst is regenerated in situ. The time of the heating stage is extremely short relative to the room temperature stage; the energy consumption of the overall process is very low. By adopting the method, the actual using requirement on indoor air purification is met; the method has a broad application prospect in the field of indoor air pollutant purification.

The invention discloses a method for removing indoor air contaminations based on the synergistic action of a negative ion generator and mixed medium, which is realized by the joint action of a negative ion generator module and a cellular mixed medium module. According to the method, the negative ion generator module generates negative ions and ozone, and the cellular mixed medium module is filled with the mixture of modified active carbon and a catalyst; the modified active carbon is modified by using alkali, acid, or a metal and a metal oxide according to different contaminations; the catalyst is an oxide of a noble metal or a transition element metal; when contaminated gas passes through, gaseous contaminations are degraded under the chemical action of ozone, the modified active carbon and the catalyst, ozone is catalyzed to be degraded, and air reaching an outlet contains negative ions, so that the content of ozone is greatly reduced, and air is fresh and pollution-free, and is safe in use. The method disclosed by the invention is applied to air purification of an indoor air purifier or an air-conditioning system.

A display filter for a display device having a display module includes a base substrate disposed in front of the display module, at least one optical filter layer layered on the base substrate, and an indoor air purification layer layered on an outwardly exposed side of the display filter and removing indoor air pollutants.