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      • QT3 Portable Air Purifier
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    • HEPA Filters
      • QT3 HEPA Filter
      • Cannon HEPA Filter with Pre-filter
      • DIY HEPA filter
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      • SA600 HEPA Filter
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      • Blast HEPA Filter
    • Carbon Filters
      • DIY Carbon Filter
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      • SA600 Carbon Filter
      • Blast Mini Carbon Filter
      • Blast Carbon Filter
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      • CO2 Monitor
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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      Orders & Shipping

Table of Contents

Air Quality Information
What Time of Day Is PM2.5 the Lowest?
How Does Living in a High Rise Affect Air Pollution?
Does the Climate in Bangkok Aggravate the Air Pollution in the City?
Did India's COVID-19 Lockdown Decrease PM2.5 in India's 6 Biggest Cities?
Is Guangzhou’s Air Safe?
Air Quality Monitors
How Accurate Are Common Particle Counters?
Is Qingping CO2 CGP22C The Same as Smart Air CO2 Monitor?
Can Plants Clean Up Air Pollution?
Do Televisions And Computer Screens Emit TVOCs or VOCs?
Do Formaldehyde Detectors Routinely React to Lots of Common Gases That Are Not Formaldehyde?
Orders & Shipping
Why Is International Shipping So Expensive?
Does Smart Air Ship to Hong Kong?
Why the Price at My Local Store Is More Expensive?
Are Smart Air Purifiers Shipped to Hong Kong covered by Smart Air’s Warranty?
Do You Ship to Hong Kong?
Protecting Yourself
How Safe Is Indoor Air?
How Does Smog Kill?
Air Purifiers
What's the AQI Outside When I Need to Turn on My Air Purifier?
Can HEPA Filters Absorb Odors?
Does Xi'an's Smog-Fighting Purifier Tower Work?
Can You Clean a Car Air Filter With Compressed Air?
Can Air Purifiers Help Protect Against COVID-19 in Restaurants?
Clean Air Movement
What are the Harms & Disadvantages of Air Pollution?
Are Electric Cars Less Polluting than Conventional Combustion Cars?
What Types of Pollution Do Conventional Cars Produce?
What Is the Clean Air Movement?
How to Participate in the Clean Air Movement?
Masks
What Mask Can Really Protect Me From Pollutants?
What’s the Difference Between N95 and KN95 Masks?
Do Masks Lose Effectiveness as You Wear Them?
How to Test if My Mask Fits?
Can UV Light Disinfects Masks?
Smart Air Purifiers
What if the Plug Doesn't Fit My Country?
Can a Carbon Filter Really Remove Formaldehyde?
How Long Does QT3's Battery Last Until It Needs Charging?
What’s the Difference Between Blast Mini and Sqair?
Blast & Blast Mini
Is the FFU Motor Sealed?
Do the Blast and Blast Mini Need to Be Installed?
Can the Delivery Man Help to Open the Package and Check the Product?
Why Is the Blast and Blast Mini So Quiet?
How Effective Are the Blast and Blast Mini at Filtering Formaldehyde?
DIY Air Purifier
What Is the Airflow Direction of the DIY?
What Kind of HEPA Filter Should I Buy for My DIY Air Purifier?
Which Side of the DIY Should the Filter Be Attached To?
How Do You Make HEPA Filters?
Does the DIY Wind Direction Affect the Purification Efficiency?
General Questions
How Much Activated Carbon by Weight Is There in Smart Air Purifiers?
What Are the Package Dimensions of Smart Air Air Purifiers
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?
Sqair Air Purifier
How Big a Room Size Can the Sqair Clean?
Can the Sqair's HEPA Filter Be Used for the Blast or DIY?
What Is the Difference Between the Standard Sqair and the Sqair - Chemical Warfare?
Does the Sqair Have an AC or DC Motor?
Can a Carbon Filter Be Used With a HEPA Filter Together in the Sqair?

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Orders & Shipping

  • Is There a Local Distributor in My Country?
  • Where Is My Package Now?
  • How Do I Place an Order if We Do NOT Have a Local Branch or Distributor
  • Do You Have a Distributor in Europe?
  • Why Is International Shipping So Expensive?
  • Why the Price at My Local Store Is More Expensive?
  • Do You Ship to Hong Kong?
  • How Can You Guarantee the Sqair Will Arrive Safely Since Its Packaging Is Plastic-Free?
  • Do You Have Physical Store in Mongolia?
  • How Is Hong Kong's Shipping Fee Calculated?
  • How Are the Shipping Fees for Taiwan and Macau Calculated?
  • How Do I Issue an Invoice?
  • Any Discounts for the Orders?
  • Can I Buy From Your Global Store if There Is a Smart Air Local Distributor or Branch in My Country?
  • How Is the International Shipping Fee Calculated?
  • Which Countries Does Smart Air Have Stores and Local Distributors
  • What Should I Do If No Shipping Cost Shows up for My Country When Checking out?
  • Does Smart Air Ship to Hong Kong?
  • Do You Accept Alipay for Orders Made in China?
  • Why Are There Stains on The Outer Shell When Receiving My Brand New Purifier?
  • Are International Shipments from Smart Air Covered for Transport Damages?
  • What Is the Warranty on Smart Air purifiers?
  • What Is the Transportation & Delivery Time for International Orders to My Country?
  • Are Smart Air Purifiers Shipped to Hong Kong covered by Smart Air’s Warranty?
  • When Are Shipping Costs Calculated on My Order?
  • Is Payment by Installments Available for Your Air Purifiers?
Smart Air low cost purifiers

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.

Certified B-Corp air purifier company

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