Facts. 1  According to WHO estimates, 235 million people suffer from asthma. 2  Asthma is the most common chronic disease among children. 3  Asthma is not just a public health problem for high income countries: it occurs in all countries regardless of level of development.
Pricing for janitorial services can fluctuate greatly, depending on the job. For example, if you are cleaning a small office, you may charge $20 or $30 per visit. If you are cleaning a large office building with basic cleaning services several times per week, you may need to charge somewhere between $500 and $700 per month. With very large jobs, you may want to quote them by the square foot.
Disadvantages of In-Office Whitening. 1  In-office bleaching is more expensive than take-home alternatives. 2  Its cost, on average, is $650, compared to $400 for take-home trays and under $100 for over-the-counter bleaching trays or whitening strips.entists who use the Deep Bleaching regimen say it provides permanent deep-whitening if patients follow maintenance instructions. Cost: The fee for the two in-office procedures, custom-fabricated trays and 14 days of home bleaching, ranges from $800 to $3,500. On average, the fee is $1,250.