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FAQ

How can we guarantee quality?

Always a pre-production sample before mass production; Always final Inspection before shipment. 

We offer at least one-year warranty for all of our products. All products are calibrated before out of factory.



What services can we provide?

Accepted Delivery Terms: FOB, CIF, EXW;
Accepted Payment Currency: USD, EUR, CNY; 
Accepted Payment Type: T/T, L/C, PayPal, Western Union, Cash; 

Why should you buy from us not from other suppliers?

GZAIR has professional oxidation and diffusion technology R&D centers both in Florida, USA and Guangzhou, China, with far-reaching insights for product innovations and design. One-stop OEM& ODM solutions provider for clients.

What does the certificate include? 

Most of our products has certificates as below: CE, FCC, RoHS, UL217, Accuracy Report etc.

How about OEM or custom? 

Sure, As a professional and stable manufacturer for air meter factories, we can support many custom contents as below: 
① Printing logo, support printing logo on Lens or device; some custom stickers, like Amazon FBA upc label... 
② Interface contents, support custom interface like language, colors.... 
③ Package, support custom package (We can send neutral artwork to client to design package) 
④ Manual, support custom manual for many languages, like English, Spanish... 
⑤ Air quality monitoring and purification solution 

Who are we?

A: We are based in Guangzhou, China, starting in 2010, selling to North America(35.00%), Mid East(13.00%), Southeast Asia(12.00%), South America(12.00%), Eastern Europe(9.00%), Oceania(7.00%), West Europe(6.00%), Africa(3.00%), Northern Europe(2.00%). There are a total of about 200 staff in our office.

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