If the owner is paying for material, with the home depot app they can see pictures of all material purchased and quantity.

On top of this, the quantity of space that is formally occupied but nevertheless available for lease is more than 50 million square feet above its historical norm, having risen steadily since mid-2020.Thus, in the aggregate, today's occupiers demand about 440 million square feet less than current employment levels suggest – an amount larger than the entire inventory of Los Angeles, the nation's fourth-largest office market.

Many of the modern air fresheners/air filters sold are actually ozone machines but they put out small quantities of ozone.

. ** Be careful if you use the unit costs(i.e. flooring cost per square foot) data on small quantities, sometimes the math doesn't work when the qty is to small. 

Either put more money down or accept negative cash flow, but if buyer direction is showing us anything it's quality over quantity.

New Harmony? 

Steve your what I call QUALITY or QUANTITY...

Lint buildup will depend to some extent on how much/haeavy use they get and I have personally recovered frighteningly large quantities of lint from vents that may have never been cleaned in 50 years. 

You'll be surprised by both the quality/quantity of the answers that you receive...

Additionally not having your cash buried in a property makes a crash the golden opportunity to buy more.Paying cash or having any quantity of cash buried in a property is a bankruptcy waiting to happen.