Asthma Spacer

Asthma Spacer

An air purifier functions to eliminate contaminants from the air. These devices are often advertised as beneficial for individuals with allergies and asthma, as well as for reducing or eliminating second-hand tobacco smoke. Commercial-grade air purifiers are available in both small standalone units and larger units that can be attached to air handler units (AHUs) or HVAC units commonly found in medical, industrial, and commercial settings.

Allergens such as dust, pollen, pet dander, mold spores, and dust mite feces can trigger allergic reactions in sensitive individuals, while smoke particles and volatile organic compounds (VOCs) can pose health risks. Exposure to VOCs increases the likelihood of experiencing symptoms associated with sick building syndrome.

Advancements in technology have enabled air purifiers to better capture bacterial, viral, and DNA-damaging particulates, making them increasingly valuable for allergy and asthma sufferers. Research also suggests that poor air quality may contribute to certain cancers, respiratory illnesses, COPD, and other pulmonary infections and conditions.

Furthermore, air purifiers reduce the need for frequent dust cleaning in rooms. It's worth noting that HEPA filters, while effective in removing larger particles down to 0.3 microns, are not FDA-certified to improve indoor air quality. Opting for an air filter that can capture particles smaller than 0.3 microns is most beneficial.

Various purification processes with varying effectiveness exist, and employing multiple processes in a single purifier can enhance contaminant removal. Considerations such as hazardous gaseous by-products, noise levels, filter replacement frequency, electrical consumption, and aesthetics are important when selecting an air purifier. While ozone production is common in air ionizing purifiers, the concentration is typically low and safe. Noise levels are typically reported in decibels (dB) and are generally low compared to other household appliances.

Filter replacement frequency and electrical consumption are major operational costs for air purifiers. Some filters can be cleaned by water, hand, or vacuum cleaner, while others require replacement every few months or years. Energy-efficient purifiers certified by Energy Star are available in the United States.

Air purifiers may be rated based on CADR, efficient area coverage, air changes per hour, clean air delivery rate, energy usage, and the cost of replacement filters.