Huzaifa Gulzar։ What’s the Difference Between HEPA and ULPA Filters?
Huzaifa Gulzar, Andrology Technologist (IVF) at Shifa International Hospitals, shared on LinkedIn։
“HEPA vs ULPA Filters – What’s the Difference?
When we talk about cleanrooms, IVF/embryology laboratories, hospitals, and other controlled environments, air filtration is a critical part of contamination control.
HEPA – High-Efficiency Particulate Air
- Typically ≥99.97% efficient at 0.3 µm
- Widely used in laboratories, hospitals, cleanrooms, and HVAC systems
- Lower airflow resistance compared with ULPA
ULPA – Ultra-Low Penetration Air
- Can provide ≥99.999% efficiency at specified test particle sizes
- Designed for environments requiring extremely high particle removal
- Generally has higher pressure drop and energy requirements
In IVF and Embryology Laboratories, maintaining appropriate air quality is especially important because environmental contamination can affect the laboratory environment and potentially embryo culture conditions.
Clean air – Better contamination control – Safer laboratory environment․”

Stay informed with the latest updates in fertility and reproductive medicine on Fertility News.
-
Sep 16, 2026, 19:19What’s the Difference Between IUI and IVF? – Caperton Fertility Institute
-
Sep 16, 2026, 19:18Michal Kubis: Will Fertility Tech Actually Reverse Population Collapse?
-
Sep 16, 2026, 19:15Caroline Biddle: What Does Good Fertility Support Look Like in Your Organisation?
-
Sep 16, 2026, 19:1112 Important Fertility Tests and When They Are Done – Valley Fertility Centre
-
Sep 16, 2026, 19:04Rafael González: Sharing Days of Science and Reuniting with Good Friends at SAMeR2026
-
Sep 16, 2026, 18:56Saadat Hassan: Fathers’ Age Changes Sperm, but Does It Change the Embryo?
-
Sep 16, 2026, 18:53Carmen Mair: 5 Fertility Tests Often Missed
-
Sep 16, 2026, 18:50ESHRE Campus 2026, Comprehensive Approaches to Pregnancy Loss – ESHRE SIG Reproductive Genetics
-
Sep 16, 2026, 18:46Jan Daniels: The Embryologist Ceiling – The Growth Story, and the Thing Underneath It
