Strict and integral qualifying procedures;

55 tests confirmation, over 400 design reviews confirmation;

Safety and stability;

Mechanical assembly and specified tooling design;

Air handling noise control;

EMC electromagnetic compatibility;

Strict transportation and dropping evaluation.

Screening of high-quality suppliers;

Working with tooling suppliers having over 5 years experience with well-known household appliances companies;

Suppliers of all key parts are large international companies and well-known domestic companies;

1000% suppliers are supplying for big-brands.

Strict and integral testing procedures;

Working with National Quality Inspection, Shanghai Testing Station, Tongji University, Institute of NBC Defence;

30m3 30m3 national standard purifier test chambers;

Reliability laboratory

Safety tests

Sunwill and Panasonic joint test for noise improvement.