Can I turn on the air conditioner during the new coronavirus epidemic? How to turn on the air conditioner during the epidemic

We all know that air conditioners are a common household appliance. They can cool down and keep warm. Many people often use air conditioners, especially in summer and winter. So can we use air conditioners during the epidemic? Let's take a closer look!

Can I turn on the air conditioner during the epidemic?

Because there are different types of air conditioners, the two most common ones are ordinary air conditioners and central air conditioners. Ordinary air conditioners can be turned on, but it is best not to turn on central air conditioners. The impact is still very large.

1. Ordinary air conditioning can be turned on! But pay attention to ventilation!

If you use ordinary air conditioners and don’t often open windows for ventilation, an air purifier is still necessary. Most air purifiers on the market are equipped with high-specification filters that are comparable to KN95 filtration effects. Many purifiers are also equipped with UV sterilization and active oxygen purification functions, which can intercept or kill bacteria, viruses and allergens in the filter element, thereby purifying the indoor air.

2. Use central air conditioning according to the situation

Some central air conditioners provide purification, filtration or sterilization modules, which can be used with confidence. Of course, if your family members are healthy and have not been out during the period, you can turn on the central air conditioner with confidence. When using it, you also need to pay attention to more ventilation, and it is better to use it with an air purifier.

There is another situation, which is also the more mainstream decoration scheme at present - the combination of central air conditioning and fresh air system.

Central air conditioning equipped with a fresh air system is the best choice during an epidemic.

First, air circulation is not suitable for the spread of germs. Second, most fresh air systems are equipped with a filtration system that can filter and purify indoor and outdoor air and directly kill bacteria and viruses.

Can the office air conditioner be used?

This must be differentiated according to the classification of the air-conditioning system. If the office is installed with an ordinary split air conditioner, such as a wall-mounted unit or a cabinet air conditioner, the refrigerant pipe connects the outdoor unit and the indoor unit. The heat exchange between indoor and outdoor is only achieved through the circulation of the refrigerant. There is no air exchange. If there are viruses in the outdoor air, they will not be introduced into the room. If the office workers are all healthy, there will be no virus contamination in the office area. This split air conditioner can be turned on with confidence, and the same is true at home.

How to turn on the air conditioner during the epidemic

Air conditioning can not only ventilate, but also spread bacteria and viruses. The principle of using air conditioning is to ensure that all the air coming in is fresh air, and there should be no circulation. When the air conditioning ventilation system is a full air system, the return air valve should be closed and the system should be operated in a fresh air mode; when the air conditioning ventilation system is a fan coil unit plus fresh air system, it should ensure that the fresh air is directly taken from the outside, and the fresh air system should be operated all day.

When the air conditioning and ventilation system is a fan coil system without fresh air, the door or window should be opened to enhance air circulation. For places with large flow of people such as shopping malls and office buildings, full ventilation should be ensured indoors regardless of whether the air conditioning system is running or not. After the staff leave work every day, the fresh air and exhaust system should continue to run for 1 hour to ensure that the air is well updated and it will be a new environment when it is opened the next day.

When should you not use the air conditioning ventilation system?

When suspected or confirmed cases of pneumonia caused by the new coronavirus are found, or when the type and air supply range of the central air-conditioning and ventilation system are unclear, the air-conditioning and ventilation system should be stopped.

How to Clean and Disinfect the Air Conditioning Ventilation System

Strengthen the cleaning and disinfection of the condensate tray and cooling water of the fan coil unit. The U-shaped pipes of the sewer pipes, air handling device water seals, bathroom floor drains, and condensate drain pipes of the air conditioning unit should be checked regularly, and water should be replenished in time when water is insufficient to avoid air mixing between different floors.

You can use 250mg/L to 500mg/L chlorine (bromine) or chlorine dioxide disinfectant for spraying, soaking or wiping for 10-30 minutes. For metal parts that need to be disinfected, it is recommended to give priority to quaternary ammonium salt disinfectants.