Aside from the higher cost, theres a concern your equipment might not be able to handle the increased air resistance that comes with higher MERV ratings, according to engineers from two of the major HVAC manufacturers, Tranes Jay Ayers and Carriers Doug Powell

For more information, call contact the CBSA Border Information Service (BIS): Calls within Canada & the United States (toll free): 1-800-461-9999 Calls outside Canada & the United States (long distance charges apply): 1-204-983-3550 or 1-506-636-5064 TTY: 1-866-335-3237 Contact Us online (webform) Contact Us at the CBSA website Appendix A Tobacco Stamps for Packages of Cigarettes Part I Part II Letters to be a minimum of 1.6 mm in height Appendix B Tobacco Stamps for Packages of Cigars Part I Part II Letters to be a minimum of 1.6 mm in height Appendix C Tobacco Stamps for Manufactured Tobacco (Other than Cigarettes) Part I Part II Letters to be a minimum of 1.6 mm in height Appendix D Health Protection Branch Contacts Health Canada Atlantic Region (Prince Edward Island, New Brunswick, Nova Scotia and Newfoundland) Jean Landry Inspector Health Protection Branch 1st floor, GCB 10 Highfield Street Moncton NB E1C 9V5 Telephone: (506) 851-7011 Fax: (506) 851-3197 Quebec Region (Quebec) Louise Kane Supervisor, Tobacco Products Unit Health Protection Branch 1001 St-Laurent Street West Longueuil QC J4K 1C7 Telephone: (450) 646-1353 Fax: (450) 928-4144 Ontario Region (Ontario) John Zawilinski Head, Tobacco Enforcement Unit Health Protection Branch 2301 Midland Avenue Scarborough ON M1P 4R7 Telephone: (416) 952-0929 Fax: (416) 954-3655 Central Region (Saskatchewan and Manitoba) Del Stitt Chief, Product Safety and Tobacco Division Health Protection Branch 510 Lagimodire Boulevard Winnipeg MB R2J 3Y1 Telephone: (204) 983-2844 Fax: (204) 984-0461 Western Region (Alberta, British Columbia, Northwest Territories and Yukon) Dale Loewen Tobacco Manager Health Protection Branch 3155 Wellingdon Green Burnaby BC V5G 4P2 Telephone: (604) 666-5005 Fax: (604) 666-3149 References Issuing office: Entry Accounting and Adjustment Policy, Operational Policy and Coordination Directorate Headquarters file: 4822-8, 7605-0, 8100-5 Legislative references: Excise Act, subsection 203(1) and section 204 Other references: N/A Superseded memorandum D: D18-2-1 dated November 7, 2017 Page details Date modified:

The National Map, accessed November 7, 2011 434810N 842314W / 43.80278N 84.38722W
Concurrently, adopting a comprehensive skincare and health regimen that includes proper nutrition, hydration, regular exercise, and adequate sleep can help counteract some of smokings adverse effects on the under-eye area
If you're in this category, our separate guide on switching from cigarettes as a heavy smoker goes into much more detail