Having an air purifier at home will certainly help as a remedy for a runny nose.
Take a look at your environment and see if there are any possible areas where you can reduce if not eliminate those sources which causes your runny nose. I know it is sometimes not possible to create a totally dust free environment but certain steps can still be taken so that it is kept to a minimum.
The environmental irritants often causing a runny nose include, dust, animal dander, cigarette smoke and pollen. The use of an air purifier in your home helps to reduce much of these pollutants.
A good air purifier can remove as much as 99.7% of airborne particles. The purifier also helps reduce airborne germs, bacteria, mold spores and fungus.
Most people find they can stop a runny nose with the use of an air purifier. You also find the air smells fresher too.