The blue filters are not true hepa filters and use a different set of techniques to remove the pollutants from your home's air. Let us take a look at what the main differences are.
The term hepa is an acronym that means High Efficiency Particulate Air. These types of filters are the top in the industry because they remove up to 99.97% of all known pollutants from the air in your home. They are very effective of removing pollen, dust particles, dust mites, cat dander, skin, rag weed, some viruses, mold and bacteria.
If you suffer from allergies, and especially asthma, I recommend that your get a Air filter or air purifier that uses the hepa filter. Indoor air is usually more contaminated than out door air and that is because we have build our modern houses to never see the light or air of day. Some people use air conditioners and then central heater all year round. These devices just continue to recycle the dirty air in and around your home.
Getting rid of these dangerous pollutants is easy with the proper air purifier. You have air purifiers large enough to clean the air in your entire home and others that are localized for a room.
The blue air filters are not true hepa filters and are "hepa like" filters that will allow more air and particles through in order to cut down on the noise of the unit. The blue builders compensated for this fact by using a internal electrostatic ionizers technology to capture the small particles.
This is all well and good but the negatively charged ionized air that could be released has been shown to affect lot of people, ironically it affect people with allergy issues. To reduce the output of negative ions they have added carbon to trap these ions. I am really not sure how much it traps and how much it lets by, so in my opinion it is safer just to go with a true hepa filter.
Because of the multiple techniques the blue uses to purify the air these units and the filters are usually a bit pricey. But there are other very good air purifiers out there that uses a true hepa filter.
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