Derived terms [edit]. 1  an even chance. 2  break even. 3  break-even. 4  even as. 5  even-handed. 6  even if. 7  even-keeled. 8  evenly. 9  evenhood. 10  even money. 11  even more. 12  even out. 13  even permutation. 14  even stevens. 15  even-tempered. 16  even up. 17  get even. 18  of even date. 19  uneven.
Typically we suggest a homeâs air ducts be cleaned every five to eight years. Homeowners with children, pets, respiratory issues or a compromised immune system may want to get their HVAC duct system cleaned more often. The better filtration the system has cuts down on cleaning frequency.
At this level, a custodian can clean 45,000 to 50,000 square feet in 8 hours. Level 5 cleaning can very rapidly lead to an unhealthy situation. Trash cans might be emptied and carpets vacuumed on a weekly basis. One custodian can clean 85,000 to 90,000 square feet in an 8-hour period. The figures above are estimates. The actual number of square feet per shift a custodian can clean will depend on additional variables, including the type of flooring, wall covers, and number of windows, all of ...