1. Choose a Purifier with Appropriate Capacity for Your Space
Selecting an air purifier that suits the space ensures optimal filtration efficiency and effective energy conservation.
If you have a low-capacity air purifier but a large room:
- The purifier may not effectively filter the air, especially in distant areas from the device.
- It can lead to unnecessary energy consumption as the device runs continuously.
- The durability of the purifier is compromised.
If you have a high-capacity air purifier but a small room:
- It efficiently cleans the air but may result in unnecessary expenses.
- It comes with a high price tag.
2. Place the Air Purifier in the Right Location
Many users overlook this aspect, assuming that an air purifier can function well regardless of its placement. However, improper placement can significantly reduce its operational efficiency. So, how should you position an air purifier?
Each air purifier typically has 3 air intake openings:
- 1 intake at the bottom.
- 2 intakes on the sides.
Air intake openings act as funnels to draw in dirty air for filtration. If these are blocked, the efficiency will suffer.
Therefore, position the air purifier as follows:
- Place the device away from items like wardrobes, chairs, obstacles...
- Position it about 90cm from the wall and approximately 100cm from other objects for optimal operation of the intake openings.
If your family is using air conditioning, place the device below the airflow of the air conditioner. This will enhance its performance, making the filtration process faster.
Additionally, when using an air purifier, close doors to prevent a continuous influx of dirty air into the house.

3. Carefully read the user manual for the functions of the device
For air purifiers with added antibacterial and antifungal functions, their effectiveness is limited to a specific duration for each type of bacteria (typically around 4-6 hours). Therefore, after this period, it's advisable to let the device operate again to ensure fresh, clean, and relaxed air.
Choose the operation mode based on the room's air condition:
- Room air quality is poor: Use the device at low or medium air flow and keep it running throughout the day.
- Rooms with prolonged inactivity and polluted air: Spaces unused for a long time tend to harbor bacteria, mold, and unpleasant odors. In this scenario, use the device at the highest air flow setting and let it run all day.
For air purifiers equipped with ozone and negative ion generation:
- Turn on the device for short durations.
- Avoid continuous 24/24 operation as it may produce hospital-like odors.
4. How to use an air purifier to save energy?
Most modern air purifiers come equipped with energy-saving technologies such as Econavi and Inverter. To efficiently use an air purifier while saving energy, follow these guidelines:
- Activate the energy-saving mode.
- Switch to night mode when sleeping or during low occupancy.
- Only maximize the device's functions when the room air is heavily polluted.
- Avoid continuous 24/24 operation.
- Use the timer function.
- In normal conditions, keep the device in Auto mode.

5. Regularly clean the device
During usage, dust will inevitably accumulate on the filter membranes, so regular cleaning is necessary. The filter membranes are usually located at the back of the device; remove them and clean with a small brush or a vacuum cleaner. However, pay attention to the following:
- Coarse filters: clean with water.
- Activated carbon filters, mixed filters: clean with a vacuum cleaner.
- Ensure external cleanliness of the device.
Regular cleaning intervals:
- Clean every 1-2 months.
- Replace the filter every 2 years.
We hope that through these tips on using air purifiers, we've provided effective guidance to prolong their lifespan. Thank you for following this article.
