Air purifying plants

4 indoor plants that tolerate the shadow places. It’s almost hard to kill.
Needs indirect sunlight.
Moderate watering when the soil gets dry.
Low maintenance plant.
Semi-shadow plants produce a lot of O2 more than usual
About the offer:
The offer includes 4 plants ( Pothos, Boston-fern, Xanadu, and Snake plant). Those plants produce O2 more than usual.
Lighting:
This plant needs to be reared in an indirect sunlight place, Choose a place inside your home besides a window or balcony that provides light but not direct sunlight. Avoid putting them in the dark or outdoors.
Watering:
Watering should proceed when the soil gets dry. Don't schedule the watering. Check the soil every morning and water only if dry. Give the plant a suitable amount of water depending on the pot volume. Don't give it more than it needs.
Fertilizing:
Those plants need fertilizing for best growth every 7-10 days per summer and once per month in winter, Add 1 teaspoon from the NPK to 1L water, Shake it well, and water your plants with it.
Kindly note that fertilizing is a watering process so don't water before or after fertilizing.