# Sqair的HEPA滤网寿命测试

1、 他们没有为这个数字提供任何证据。

2、瑞士公司发表寿命数据，但是没有说明这是在那么干净的瑞士还是雾霾严重的新德里数字。在这两个地方，HEPA滤网的寿命会有所不同，所以为什么只给一个数字？

### 方法一：实验室测试

2.他们把空气净化器放在一个3平方米的小盒子里，点燃20支香烟，让空气净化器吸走所有的微粒。

3.再次测测试效果。

4.再点燃10支香烟让空气净化器吸完。

5.再测一遍效果。

6.继续让空气净化器“抽烟”，然后在它总共“抽完”405060支烟都做测试。

7.一旦效果下降到原本效果的50%，测试就完成了。

8.因为实验室知道香烟中含有多少微粒，所以他们可以估计当HEPA滤网的效率下降到50%时，它积累了多少微粒。

9.评估在中国的平均环境下会面临多少颗粒物，然后用这个来估算滤网的寿命。

（为了我们Smart Air的书呆子，Sqair实际CCM是4468微克）

### HEPA寿命结果

Sqair开了1,400个小时的时候，它的效果下降了50%

1,400个小时，每天开机8个小时的话，SqairHEPA滤网的寿命是175天。确切的说，是5.83个月！这个数字很接近6个月的实验结果。

### 《Sqair的HEPA滤网寿命测试》有13条评论

1. Hi, does it mean that on highest setting (#3),the HEPA filter of SQair can last up to 6months when used 8hrs a day? Thanks

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• Yep, that’s right Mike!

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2. I am actually surprised at the fairly long time it took the filter to reach 50% loading !

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3. What was the average AQI in Beijing during the test? Thanks.

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4. Initial thoughts are that volume should be used rather than area – ^3 NOT ^2?

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• Hi John, you are right! If you live in a loft, the space calculation will be considered as two floors. We use square meter here for regular flat structure, about 2 meters floor height! This is more convenient for people to reflect which model suits the best in their apartment.

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5. What speed of the purifier when you performed the test? Speed at 1, 2 or 3?

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• By speed do you mean the CADR? The CADR of the Sqair is 65m³ at level 1, 180m³ at level 2 and 315m³ at level 3.

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• Yes, I would like to know which level the Sqair was set when running the test on the balcony of the Smart Air office, with the window open. If it ran at level 3 all the time, people may calculate the life span of their filter based on actual usage.

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• It did run on level 3! It would be best to adjust the HEPA lifespan based on your own use because running it at a lower level or for shorter hours would mean the filter can last longer!

• Thanks!

6. It would be interesting to weight the filter to see home many grams of pollution it captured!

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• *weigh, How many…sorry my fingers are faster than my brain

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Smart Air — 聪明空气（北京）科技有限公司 — 是一家小型社会企业，致力于为室内空气污染问题提供价格实惠，有实验数据支持的空气净化器。我们的教育沙龙横跨亚洲多个国家，旨在向大家传播空气污染的防护措施。