Types of Window Screens for Allergen Protection

Yes — there are specialised window screens designed specifically to block allergens, including fungal spores, pollen, and dust. These can be a practical and effective solution for patients with ABPA, SAFS, asthma, CPA, or other respiratory allergies.

✅ 1. Pollen and Allergen Screens (Micromesh / Allergy Mesh)

• Made from ultrafine polyester or polypropylene mesh

• Pore size: typically 0.3–0.5 mm, small enough to block:

  • Pollen

  • Fungal spores (like Aspergillus and Cladosporium)

  • Insect particles

• Allows air flow while reducing allergen load

🛒 UK Brands / Products to Look For:

• Poll-Tex®: Proven in European studies to block >99% of airborne pollen and fine particles.

• Neat Pleat® or Flyscreen UK Allergy Mesh

• Tesa® Insect Stop Pollen Protection

• Amazon or B&Q: Offer DIY-fit mesh kits

✅ 2. HEPA-Filtered Window Units

• Some products combine an extractor fan + HEPA filter, ideal for:

  • Rooms needing airflow without outdoor contaminants

  • Urban or high-spore environments

• More expensive but very effective

Examples:

• Vent-Axia PureAir Room Ventilator

• Aereco HRV or HEPA filter units

🛠️ Installation Tips

• Choose removable or magnetic frames for rented homes

• Ensure tight seal around edges to prevent gaps

• Use with dehumidifiers or HEPA air purifiers indoors for extra control

💡 Bonus Tip:

• Leave windows open early morning or midday if you must ventilate — avoid dusk/night when fungal spore levels rise.

• Don’t open windows near compost heaps, sheds, or leafy overgrowth.