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    • HEPA Filters
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    • Carbon Filters
      • DIY 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
Is Beijing's Air Better in Summer?
Did Delhi’s Air Quality Improve in 2018?
Beijing Sees Worse Pollution During Coronavirus Shutdown?
What Is the Air Quality of Chengdu in 2016?
Did China's Air Quality Becomes Better in 2018?
Air Quality Monitors
Can one Sqair Purifier be Used to Clean Two Rooms with a Combined Floor Size 40sqm?
How Can I Check If an Open Window Is Affecting My Air Purifier’s Effectiveness?
Why Can't I View Historic Data on QP Pro If It Isn't Connected to Wifi?
Which Particle Counter Should I Get?
Why The Carbon Filter Has Little Impact on The Indoor tVOCs According to QP Monitor?
Orders & Shipping
How Are the Shipping Fees for Taiwan and Macau Calculated?
How Do I Issue an Invoice?
Which Countries Does Smart Air Have Stores and Local Distributors
Is There a Local Distributor in My Country?
What Should I Do If No Shipping Cost Shows up for My Country When Checking out?
Protecting Yourself
Do We Need Car Air Purifiers?
What Is PM0.3 and Why Is It Important?
Where Am I More Likely to Catch COVID-19?
Air Purifiers
Can the Carbon Filter Be Reused?
Is a Cheap HEPA Reliable?
Why a Weaker Filter Actually Makes a Stronger Purifier
What's the Best Way To Tell When a HEPA Filter Needs Replacing?
What's the Difference between Pellet-style and Foam-style Carbon Filters?
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
Will Doubling the Layers of Fabric Increase the Efficiency of a DIY Mask?
Will Disinfecting Masks With Alcohol Degrades Performance?
Is There Any Difference Between N95 and P2 Masks?
How Long Can You Wear DIY Masks For?
How to Make DIY Masks?
Smart Air Purifiers
Do Smart Air Purifiers Work in the US on 110V?
Can the Carbon Filter Recover Its Effectiveness?
Do You Offer Smart Air Purifiers Suitable for 110V Mains Supplies?
Blast & Blast Mini
What Is the Leakage Protection Plug?
What Is the Difference Between the Blast and Blast Mini?
Are the Blast and Blast Mini Children-Friendly?
Is the FFU (Fan Filter Unit) Motor an Axial Flow Motor or Centrifugal Motor?
Are the Blast and Blast Mini Effective Against Formaldehyde?
DIY Air Purifier
Is the DIY Really Effective?
How Much Activated Carbon by Weight Is There in Smart Air Purifiers?
How Often Does the DIY's HEPA Filter Need to Be Replaced?
What's the Airflow of DIY 1.1?
What Is the Airflow Direction of the DIY?
General Questions
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
What is the CFM of Smart Air's Filters?
Sqair Air Purifier
Why Don’t You Have the Cannon Anymore?
How Big Is the Extended Surface of the Sqair's HEPA Filter?
The Sqair I Received Has a Layer of Dust on Top of It, Is This Because This Is a New Purifier?
If I Buy a Sqair, Does It Come With the HEPA Filter?
How Long Can the Sqair's HEPA Filter Last? How Often Will I Need to Replace the Filter?

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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.

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