Characteristics of the participants

Do you have air purifier at home?

I do not have, but not plan to buy (%)

I do not have, but plan to buy (%)

I have (%)

Gender

Female

20

21

7

Male

18

14

5

Age

<18

7

6

2

18 - 25

23

18

3

25 - 45

5

8

6

45 - 60

2

3

1

>60

0

0

0

Education level

Middle School

0

0

0

High School

3

2

1

Junior college

6

6

1

Bachelor

24

23

9

Master

4

4

1

PhD

1

0

0

Occupation

Enterprises

7

10

4

Farmers

0

0

0

Freelancers

2

2

1

Public and governmental organizations

2

3

3

Student

27

20

4

Other

1

1

1

Living

district

Caidian

0

1

0

Dongxihu

1

1

0

Hannan

0

0

0

Hanyang

2

2

1

Hongshan

15

12

4

Huangpo

0

0

0

Jiangan

2

3

1

Jianghan

3

2

1

Jiangxia

7

6

2

Qiaokou

1

2

0

Qingshan

1

1

1

Wuchang

10

10

3

Xinzhou

1

1

0

Living area

Suburban area

14

14

4

Central city area

30

27

10