Testing of central air-conditioning and ventilation system, indoor air pollution, drinking water, secondary water supply, public places (such as hotels, cultural and entertainment places, etc.) Including:
1.Various types of hotels;
2.Theaters (clubs), concert halls, video halls (rooms), recreation halls, dance halls (including karaoke parlors), bars, teahouses, coffee stalls and multi-purpose cultural entertainment venues;
3.Public bathrooms;
4. Barber shop, beauty salon (shop);
5. Water quality of indoor and outdoor swimming places and air quality of swimming pools;
6. Spectators sit in more than 1,000 stadiums;
7. Libraries, museums, art galleries and galleries;
8. City business area of over 300 ㎡ and county, township and town business area of over 200 ㎡ of indoor Spaces, bookstores;
9. Waiting room (including waiting room for registration and collection of medicine) for hospitals at or above the county level (including district or county level);
10. Train waiting rooms at special and first and second class stations, boat waiting rooms above second class, airport waiting rooms and coach stations above second class; Places of passenger train carriage, ship cabin, airplane cabin, etc.;
11. restaurants (restaurants) with air-conditioning.