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Smart Air Knowledge Base
  • About
    • Why we started Smart Air
    • Our Mission: What We Do
    • Meet the Smart Air Team
    • Why People Trust Smart Air
  • Learn
    • Knowledge Base
    • Clean Air Blog
    • Workshops
    • Press Release
  • Products
    • Air Purifiers
      • QT3 Portable Air Purifier
      • DIY 1.1 Air Purifier
      • The Sqair Air Purifier
      • SA600 Air Purifier
      • Blast Mini Mk II Air Purifier
      • Blast Mk II Air Purifier
    • HEPA Filters
      • QT3 HEPA Filter
      • Cannon HEPA Filter with Pre-filter
      • DIY HEPA filter
      • Sqair HEPA Filter
      • SA600 HEPA Filter
      • Blast Mini HEPA Filter
      • Blast HEPA Filter
    • Carbon Filters
      • DIY Carbon Filter
      • Sqair Carbon Filter
      • SA600 Carbon Filter
      • Blast Mini Carbon Filter
      • Blast Carbon Filter
    • Air Quality Monitors
      • CO2 Monitor
      • QP Lite Air Quality Monitor
      • QP Pro Air Quality Monitor
      • AirVisual Pro Air Pollution Monitor
  • Impact
    • Smart Air impact
    • We’re a B-Corp!
  • Business
    • Offices & Corporates
    • Schools & Universities
    • Hospitals
Knowledge Base      Smart Air Purifiers      General Questions

Table of Contents

Air Quality Information
Exactly How Much Does Diwali Harm Delhi’s Air?
What Would China’s Air Be Like if Everyone Stopped Driving?
Why Is Beijing Polluted in February Despite Inactivity?
Do Televisions And Computer Screens Emit TVOCs or VOCs?
Is Beijing's Air Quality Worse During Winter?
Air Quality Monitors
Can the Concentration of PM2.5 Be Higher Than the Concentration of PM10 for the Same Location?
If I Open the Window, Should I be Worried about CO2 Entering My Room?
What Type of Measuring Device or Monitor Should be Used to Detect if Air Quality is Safe?
Why Can’t Monitors Measure PM10 or PM1 or PM2.5? How Can You Tell How Accurate a Monitor Really is?
Can one Sqair Purifier be Used to Clean Two Rooms with a Combined Floor Size 40sqm?
Orders & Shipping
Any Discounts for the Orders?
Why Are There Stains on The Outer Shell When Receiving My Brand New Purifier?
Can I Buy From Your Global Store if There Is a Smart Air Local Distributor or Branch in My Country?
How Is Hong Kong's Shipping Fee Calculated?
How Is the International Shipping Fee Calculated?
Protecting Yourself
How Big Should My HEPA Filter Be if I'm Making My Own DIY Air Purifier?
Can We Measure Air Pollution Simply by Looking Up at the Sky?
Air Purifiers
Are Car Air Purifiers Effective?
Is the HEPA Filter Only a One-Time Use?
Do Expensive Air Purifiers Work Better?
Can I Turn Off my Air Purifier When I Sleep?
What Is the Difference between ACH and e-ACH?
Clean Air Movement
What Is the Clean Air Movement?
How to Participate in the Clean Air Movement?
What Are the Recommended Air Changes per Hour for Restaurants?
How Can I Improve the Air Changes per Hour in My Restaurant?
What are the Harms & Disadvantages of Air Pollution?
Masks
How Long Do Air Pollution Masks Last?
DIY Masks: Is Paper Towel Effective at Blocking Viruses?
What Are the Differences Between N95, R95 and P95?
Do Pollution Masks Really Work?
What Are Some Good Materials for Making DIY Masks?
Smart Air Purifiers
Can the Filters Be Washed?
How Do You Do the HEPA Longevity Test?
I Purchased a Smart Air Purifier that's Rated for 220V. How Can I Use it with a 110V Power Supply, for example in the USA?
Where Can I Get a New Power Cable for My Purifier?
Can an Invoice Be Issued?
Blast & Blast Mini
Can the Pre-Filter for the Blast and Blast Mini Be Reused?
Are the Corners of the Blast and Blast Mini Kid-Friendly?
Can the Blast be Placed Horizontally on its Side?
How Big Is the Surface Area of the Blast and Blast Mini HEPA Filter?
How to Change the Filters for the Blast and Blast Mini?
DIY Air Purifier
How High Is the DIY's Voltage Level?
How High Is the DIY's Power?
How Heavy Is the DIY?
How Long Is the Power Cord?
What Is the Size of the DIY?
General Questions
What's the Difference between Pellet-style and Foam-style Carbon Filters?
Why Can’t CADR Values over 800m3/hr or 450cfm Be Measured Reliably?
Is the Xiaomi Fresh Air Ventilator Similar to the Blast in Principle and Efficiency?
Are Carbon Filters Recyclable?
Does Smart Air Recycle Filters?
Sqair Air Purifier
Does the Plug Have a 3C Safety Certification?
Why Is There No Pre-Filter in Front of the HEPA Filter for the Sqair?
How Do I Choose Between 2 Sqairs and 1 Blast Mini?
The Sqair's Power Cable Is Detachable, So Can I Switch It With Another Cable?
Can We Only Use a Carbon Filter, Without the HEPA Filter in the Sqair?

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General Questions

  • How Often Should the Filters to Be Replaced in my Air Purifier?
  • Why Do My HEPA Filters Smell?
  • Why Not Use a Higher Grade HEPA Filter?
  • What's the Charcoal Net Weight in the Carbon Filter of Each Product
  • How Much Activated Carbon by Weight Is There in Smart Air Purifiers?
  • What Are the Package Dimensions of Smart Air Air Purifiers
  • Are Carbon Filters Recyclable?
  • What is the CFM of Smart Air's Filters?
  • Does HEPA Filter Efficiency Decrease Over Time and With Age?
  • Can I use a Humidifier Together with My Air Purifier?
  • What's the Difference between Pellet-style and Foam-style Carbon Filters?
  • Is the Xiaomi Fresh Air Ventilator Similar to the Blast in Principle and Efficiency?
  • Why Can’t CADR Values over 800m3/hr or 450cfm Be Measured Reliably?
  • Does Smart Air Recycle Filters?
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Smart Air is a social enterprise and certified B Corp that offers simple, no-nonsense air purifiers and provides free education to protect people from the harms of air pollution.

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