A/C Sterilization & Maintenance


If the air conditioner is not cleaned regularly, the bacteria and mold will grow easily. It may cause odor and poor refrigeration efficiency. Challenger's " A/C Sterilization & Maintenance " focuses on cleaning the air-conditioning system and replacing the refrigerant, solving the problem of odor and bacteria, ensuring the operation of the air-conditioning system and having a good refrigeration efficiency.


  • Clean the evaporator filter & vent x1
  • A/C Sterilization x1
  • Check the cabin air filter x1
  • Check and replace the refrigerant x1


Terms & Conditions

  • Valid for 90 days after purchase
  • Expired Voucher will be forfeited and cannot be exchanged for cash, redeemed for cash, refunded or extended
  • Only valid on passenger cars. Not valid for commercial vehicles
  • Parking fee is needed
  • Customers must redeem at the redemption location in person to use the service
  • No change or refund after purchase and confirmation
  • Voucher cannot be used in conjunction with any other promotion offer or shopping voucher
  • Information and photos are provided by merchant and for reference only

Kwun Tong Maintenance Center
G/F, Mai Hing Ind. Bldg, 16-18 Hing Yip Street, Kwun Tong