Do Air Filters Really Work? Air purifiers can significantly reduce 99.97% of particles in the air using True HEPA filters and carbon filters. They can remove things like Dust, Smoke, Pollen, Pet Hair, Dander, Volatile organic compounds (VOCs), Cooking smells and chemicals like Formaldehyde depending on the model. All these allergens can affect yours and your family’s health especially if anyone is susceptible to asthma. When When formaldehyde is present in the air at levels exceeding 0.1 ppm, some individuals may experience adverse effects such as watery eyes; burning sensations in the eyes, nose, and throat; coughing; wheezing; nausea and skin irritation.
Where should I put them? - Air purifiers are best put where the bad smells happen and where there’s mostly dust. For instance, the kitchen, the bedroom, and any place where there is a lot of pollution. When choosing your air filter, you may want to consider the noise level if you are going to site it in a bedroom. They are all relatively quiet, but some are better than others