Cleaning your house weekly could be enough to give you asthma, according to the latest research. Exposure to cleaning products could be responsible for triggering as many as 15 per cent of adult asthma cases, the study found. Spray air fresheners, furniture polish and glass cleaners carried the highest risk. Anyone concerned about asthma should speak to their doctor and in the meantime give your health and the environment a boost by switching to natural cleaning products instead. Use aromatherapy candles for a natural air freshener or cut lemons or simmer some cinnamon and cloves in the kitchen. For furniture use a few drops of lemon juice with olive oil and apply with a soft rag and for glass or window cleaner use vinegar, lemon juice and water, keep in a spray bottle and use like ordinary window cleaner.