Effects of mechanical washing and drying on the removal of pet allergens
- Authors
- Choi, Young-Jin; Seong, Sujin; Lee, Kyung Suk; Lee, Kisup; Seo, Hyeongjoon; Oh, Jae-Won
- Issue Date
- Sep-2022
- Publisher
- OCEAN SIDE PUBLICATIONS INC
- Citation
- ALLERGY AND ASTHMA PROCEEDINGS, v.43, no.5, pp.E25 - E30
- Indexed
- SCIE
SCOPUS
- Journal Title
- ALLERGY AND ASTHMA PROCEEDINGS
- Volume
- 43
- Number
- 5
- Start Page
- E25
- End Page
- E30
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/185370
- DOI
- 10.2500/aap.2022.43.220029
- ISSN
- 1088-5412
- Abstract
- Background: In Korea, the number of households with indoor pets is rapidly increasing in parallel with changes in cultural lifestyles. The sensitization rate of pet allergens is also increasing in Korea.
Objective: We evaluated the effectiveness of washing machines to remove dog and cat hair and their allergens. In addition, this study aimed to investigate whether only a mechanical dryer without mechanical washing could be used for pet allergen removal.
Method: We brushed cats and dogs, and thereafter collected their hair and used a residential vacuum cleaner to obtain dust and other particulate matter from a household. The contents of the vacuum bag were sifted through a 300-μm sieve filter. Some of the contents were placed in phosphate-buffered saline solution with 0.5% Tween 20 to make a liquid extract. Hair, dust, and liquid extract‐contaminated fabric samples after mechanical washing or after drying without mechanical washing were analyzed for pet allergens (Fel d l [cat], Can f 1 [dog]) by using a two-site enzyme-linked immunosorbent assay. We assessed the remaining allergens in the contaminated fabrics after mechanical drying and washing.
Results: The mean Fel d l and mean Can f 1 removal ratios after mechanical washing with detergent were > 99.99% for the dust, hair, and liquid extract. The removal ratios after mechanical washing without a detergent were lower for both Fel d 1 and Can f 1, for hair, dust, and their respective liquid extracts (p < 0.05). Mechanical drying was just as effective as mechanical washing with detergent for removing Can f 1 but was less effective for Fel d 1 (p < 0.05).
Conclusion: Mechanical washing with detergent is important to remove pet allergens from contaminated fabrics. If washing is difficult, then using just a dryer without washing can be an alternative method to remove allergens from contaminated bedding or clothing.
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