Indoor Air Quality Filter
According to the EPA, indoor levels of pollutants are often 2-5 times and up to 100 times higher than outdoor levels and people spend ~90% of their time indoors. The primary causes of poor indoor air quality are pollution sources that emit irritating or dangerous gases and particles. The sources of indoor air pollution can be fuel burning appliances, cooking and cigarette smoke, household cleaning items, and outgassing of organics from building materials and furniture. Exposure of these indoor pollutants can result in compromised health and occasionally even death. TDA Research (TDA) addresses this need by developing a high efficiency adsorption system for removing contaminants/toxins commonly found in indoor air including HCN, NH3, NO2, CO, and VOCs (including chlorinated compounds) to sub ppb levels (well below the EPA permissible exposure level to comply with WHO recommendations to reduce the incidence of cancer) to achieve risk based indoor air-standards.
TDA Research has developed a high efficiency adsorption system to remove the indoor contaminants. TDA’s high efficiency sorption system features an advanced metal-organic framework (MOF) sorbent that offers superior adsorption capacities for common contaminants such as VOCs (including formaldehyde and in particular chlorinated compounds), and NO2. It will have an estimated lifetime of 2-2.5 years, much greater than those offered by the current impregnated activated carbon filters that need to be changed every 3-12 months. Our system will also feature a long-life ambient temperature CO oxidation (ATCO) catalyst that will be used to oxidize dangerous carbon monoxide into CO2 (a feature currently not offered by systems in the market, but which has been demonstrated by TDA for use in spacecraft cabin air cleanup and pilot breathing air. The integrated system will also function as a high-MERV rated filter to provide a full Indoor Air Quality (IAQ) solution. The filter/sorbent catalyst will be mounted in a frame in the ductwork of commercial building HVAC systems, and its pressure drop will be low enough that no modifications are required. It uses a coarse filter first followed by a HEPA filter and then a sorbent filter and finally push the contaminant removed air through TDA’s proprietary ATCO catalyst filter.
Efficiently filters contaminants like HCN, NH3, NO2, CO, and VOCs (including chlorinated compounds) to sub ppb levels.
Features an advanced metal-organic framework (MOF) sorbent that offers superior adsorption capacities.
Also features a long-life ambient temperature CO oxidation (ATCO) catalyst that will be used to oxidize dangerous carbon monoxide into CO2.
Estimated lifetime of 2-2.5 years,
Functions as a high-MERV rated filter to provide a full Indoor Air Quality (IAQ) solution.
