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Product - Air Cleaner:AirVita
Are you sure you are breathing Fresh Air? Smallest that can easily wash with water, can your Air Cleaner do that too?

How much Negative Ion in our surrounding?
In our surrounding, the amount of Negative Ion in the air more or less depends on the weather, geographical conditions, pollution and other factors. On the earth surface, Negative Ions are usually around a few hundred or thousands per cc. The following are some measurements of Negative Ion in various locations:
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Outdoor
Location*	Waterfall	Forest	Park (Windy weather)	Busy Traffic Road	Industrial Park	Along River side of Major City
Negative Ion per cm3	> 2,800	2,000	1,000	1,800	500	270
Positive Ion cm3		1,000	500	2,700		40

Indoor
Location*	Beside Window during lighting	Room in Wooden house*	Luxury Condo.	Well-ventilated Office	Game Room	KTV Room	Enclosed Office
Negative Ion per cm3	> 3,000	2,000	380	1,800	30	5	0
Positive Ion cm3		1,400	2,200	120	5	500
* Weather condition: Sunny day with humility at 40 to 60%

Negative Ion (per cm3)	>= 2100	2100 - 1800	1800 - 1500	1500 - 1200	1200 - 900	600 - 600	<= 600
Grade	1	2	3	4	5	6	7
Health related	Excellent	Very good	Rather good	Good	Slight Good	Normal	Not healthy
Pure and Fresh Air	Very clean	Clean	Slight clean	Slight clean	Average	Average	Not clean

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FAQ		What are Negative Ions	How Negative Ions benefit humans	Health benefits of Negative Ions	How Ion affect health
		What is Negative Ion Generator	Performance standards for Air Cleaner	Checking on Negative Ions	More related Useful Information

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