Why are HEPA filters so expensive

Why Are HEPA Filters so Expensive?

The costs of replacement HEPA filters for air purifiers can quickly add up. A quick search on Amazon reveals some HEPA filters that cost over a hundreds of dollars. Should HEPA filters cost this much? Put simply: No! Read on to learn why HEPA filters shouldn’t be expensive, but why … Read more

Hospital in Dhaka Uses Sqair Air Purifiers for COVID-19 Protection

How a hospital in Dhaka, Bangladesh, quickly built COVID-19 patient isolation rooms using hospital beds, plastic cover and the Sqair HEPA air purifier. Following the COVID-19 outbreak, the CDC recommended hospitals isolate COVID-19 patients using airborne infection isolation room (AIIR). These are single person rooms with a negative air pressure … Read more

Do portable air purifiers work?

Wearable Air Purifiers: What Are They & Do They Work?

Small, wearable necklace air purifiers have become popular to protect against viruses and other pollutants. They’re small, lightweight, portable and fairly cheap. Here’s an Amazon listing for one which claims to eliminate germs, dust, viruses and more from the air. In the Philippines, President Duterte has been seen wearing a … Read more

Dyson Pure Cool Test: Only 49% Effective

New Dyson Pure Cool TP04 Tests show the purifier reduced indoor PM2.5 levels pollution by just 49% in a typical room size. This data adds to a growing amount of evidence and tests showing the Dyson air purifier underperforms purifiers far cheaper than it. Dyson Pure Cool TP04 Test: Marketing … Read more

Best Place To Put Air Purifier in Room

The Best Place To Position Your Air Purifier

Where should I place my air purifier? It’s a common question every air purifier owner has. Where to position an air purifier can be a difficult decision. How does position affects its performance? Is it best to put an air purifier next to a wall? This post answers the question … Read more

Study Finds Ionizers Increase Air Pollution

A peer-reviewed study from the University of Texas finds that ionizers increase air pollution, creating formaldehyde, ozone, and particulate. This data contrasts sharply with claims from air purifier companies that market ionizers as magical machines. One company in China claims that their machine’s negative ions “remove PM2.5 particulate pollution and … Read more

How to protect yourself from wildfire smoke

3 Steps to Protecting Yourself From Wildfire Smoke

Wildfires create a serious amount of smoke and air pollution. Smoke that can cause short and long term health impacts. That’s why it’s important to know how to protect yourself from wildfire smoke. Wildfire smoke is a form of air pollution. It contains dangerous VOC gases and small particles (PM2.5) … Read more

What is a HEPA filter and how does a HEPA filter work?

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 is a HEPA Filter? “HEPA” stands for “high-efficiency particulate air” (filter). It sounds complicated, but HEPA air filters are nothing fancy. They … Read more

Size of coronavirus particle pm2.5 and bacteria

Can HEPA Filters and Air Purifiers Remove COVID-19?

Data shows face masks can protect you from COVID-19, but how about air purifiers? Can an air purifier with HEPA filters remove COVID-19 and other viruses? Can HEPA Filters Remove Viruses Such as COVID-19? To answer this question, we need to first answer if HEPA filters can capture particles as … Read more

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