TY - CPAPER AU - Pete Thomas, DVM, MS TI - Update on positive pressure air filtration in a large production system T2 - AASV Pre-Conference Seminars DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2018 DA - 2018/03/03 L1 - https://www.aasv.org/library/swineinfo/Content/AASVPCS/2018/04-010_Thomas.pdf SE - Biosecurity ER -