2. Breathe through your nose as much as possible: this can help filter the air and reduce the possibility of harmful substances ingested by your body.
3. Pay attention to the control of inhalation time and exhalation time: the inhalation time and exhalation time should be equal, which can help your body keep balance.
4. Try to breathe in the place with fresh indoor air: Indoor air can be more beneficial to health because it is easier to filter.
5. Try to do relaxation breathing exercises: relaxation breathing exercises can help you release tension and relax.