Air purifiers with UV lights have sprung up as potential saviors for fighting the coronavirus. These ‘sterilization lamps’ are being lauded a reliable way to kill 99.9% of viruses. But are they as good as people say, or are UV light air purifiers just another way for companies to jack up the cost of air […]
Tag: HEPA filter
Can HEPA Filters Be Used to Make DIY Face Masks?
News media like The New York Times and Today have been talking about using HEPA filters as a material to make DIY face masks. There are even YouTube videos showing how to DIY a mask out of a HEPA filter. But just how well can HEPA filters capture virus-sized particles, and can HEPA […]
Are Fibers From HEPA Filters Harmful to Health?
HEPAs are air filters often used in air purifiers or central air systems to clean indoor air. They’re made from a mat of randomly aligned fibers that are usually made from polypropylene (PP) or fiberglass. That fact has made some people afraid of HEPA filters. There’s a controversy over whether fiberglass particles can cause lung […]
What Are HEPA Filters and How Do They Work?
The term “HEPA filter” can be confusing. What does HEPA stand for? What is a HEPA filter made from, and what actually makes it a HEPA filter? What Exactly Is a HEPA Filter? “HEPA” stands for “high-efficiency particulate air” (filter). It sounds complicated, but HEPA filters are nothing fancy. They were invented back in the […]
Can HEPA Air Purifiers Capture the Coronavirus?
Data shows face masks can protect you from the coronavirus, but how about air purifiers? How effective are HEPA air filters at capturing the coronavirus? Can HEPA Filters Capture The Coronavirus? To answer this question, we need to first answer if HEPA filters can capture particles as small as the coroanavirus. The coronavirus measures 0.06 […]
Why a Weaker Filter Actually Makes a Stronger Purifier
Why does Smart Air’s latest air purifier, The Sqair, use a weaker filter–an H11 HEPA compared to the H12 and H13 HEPA filters out there? Tests of different filter grades revealed that weaker filters sometimes make stronger purifiers. Of course, purifier companies like to market their filters as top grade. Lots of purifiers […]
Renting Air Purifiers is More Expensive Than Buying Outright
Many purifier companies offer air purifier rental services as part of their business model. It sounds great: they offer to rent you an air purifier short term, and you save money in the process. This simple analysis will show why that system is flawed, and how renting air purifiers is just another way to make […]
What Is PM0.3 and Why Is It Important?
There’s a lot of fuss around 0.3 micron particles. What’s a 0.3 micron filter? Why are HEPA filters listed as filtering 0.3 micron particles? Can masks and HEPA filters capture 0.3 micron particles? This article will provide the answers to these questions. What Does “PM” Mean? To understand what PM0.3 is and why it is […]
What Combination of Air Filters Do I Need to Protect Against Everything?
What combination of air filters do I need to protect against everything? This will sound like a grand claim, but two filters are all you need. Here’s why (with data). Very Reasonable Reasons To Be Skeptical Why might you be skeptical? For one, big purifier companies are in an arms race to tell you […]
Smart Air Unveils New Techno-Ultra HEPA Filter
This post is an April fools, published on 1st April, 2019. Smart Air uses no fancy “Techno-Ultra” tech. In fact, a HEPA filter is all an air purifier needs. Read on bust this myth. “Finally, a HEPA filter that actually works! Meet the Techno-Ultra HEPA filter!” Back when we started Smart Air in 2013, we […]
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