# K170848: Alzair Allergy Blocker

- Pathway: 510(k) (Traditional)
- Applicant: Nasaleze International, Ltd.
- Decided: Jun 14, 2017 after 85 days
- Product code: NUP (Cream, Nasal, Topical, Mechanical Allergen Particle Barrier)
- Device class: 2
- Regulation: 21 CFR 880.5045
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 6 generations back to K002338 (2001). 8 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 10 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K132520: Nasal Ease Allergy Blocker, Hi-Tech Pharmacal, Inc. (2013) Summary page 5.

## Most influential descendants
- K201734: AllerBlock Junior (2021), 0 descendants of its own

## Indications for use
Alzair Allergy Blocker is intended to treat hay fever and allergy sufferers by promoting alleviation of mild allergic symptoms (i.e. mild nasal irritation including itchy, runny, or congested nasal passages) triggered by the inhalation of various airbone allergens including indoor and outdoor environmental pollens, house dust, animal hairs and dust mites. Application of nasal ease produces a mucous-like gel barrier that evenly coats the nasal membranes and acts to block inhaled allergens within the nasal cavity.

Source page: https://510kreport.com/device/K170848
Methodology: https://510kreport.com/methodology