Home > Newsletters > Need to Know > Set up an air filter at home Updated 09 February 2015 Action Point 0 Cross-contact is when a food that is an allergen comes into contact with a ‘safe food’ and their proteins mix. As a result, each food contains small amounts of the other food. It can happen anywhere so always be mindful to keep utensils clean. More: Need to KnowSet up an air filter at home advertisement Read Health24’s Comments Policy Comment on this story 0 comments Comments have been closed for this article. Logout Comment 0 characters remaining Share on Facebook Loading comments... Other news News 10 freak accidents that killed people Diet and nutrition 5 healthier ‘adult’ ice lollies to eat if you’re watching your weight Medical Health dept on alert: This is why 800 000 homes are being fumigated News QUIZ: What would you do in these 7 emergencies? Medical TB levels rising in Northern Cape Diet and nutrition 4 signs you’re not getting enough protein From our sponsors Discover treatments that can help reduce acne What can I do to reduce or remove acne marks? Dementia and Incontinence: what you need to know WIN a R2000 Skin Renewal online store voucher! Live healthier Watch out! » Gross fungal infections you can pick up at the gym You go to gym to exercise. But make sure the only thing you pick up is a dumbbell and not one of these gross fungal infections. Holiday health » Your 10-step asthma holiday checklist Don’t let asthma ruin your summer holiday. Whether you are travelling or embracing the summer at home, make sure you plan ahead.