Why the Mijia Air Conditioner Pro Eco 5-Star 1.0 HP Inverter has a strange smell when used?

For your reference, here are more details about the strange smell of the Mijia Air Conditioner Pro Eco 5-Star 1.0 HP Inverter:
1. If the air conditioner has a strange smell, please check whether the filter is too dirty. Please clean the filter and observe whether the strange smell still exists;
2. When the air conditioner is cooling, condensation will form on the surface of the evaporator. If the air conditioner is not cleaned for a long time, water and dust will accumulate on the evaporator, producing a strange smell. Please clean the evaporator and observe whether the strange smell still exists;
3. If the air conditioner’s drainage hose is clogged or not draining smoothly, water will accumulate inside the air conditioner, causing bacteria to grow and produce a strange smell. Please check and make sure the drainage hose is unobstructed to prevent a strange smell caused by accumulated water;
4. If it still cannot be solved, please apply for an after-sales inspection.