Theatre Design & Technology - Summer 2017 - Public - 39

posures over many months or years. They are difficult to
diagnose. Usually, symptoms are hardly noticeable until
severe permanent damage has occurred" (Rossol 2011,
15). Repeated exposure to chemicals can cause an increase in sensitivity to that chemical. So, while initial
use may not have any reaction, over time, irritation to
the respiratory tract or skin can occur. All chemicals
should be considered guilty until proven innocent.
If there is ever a concern in your workplace about
air quality and chemical contaminants, an industrial hygienist should be brought in to evaluate the workplace.
The best way to understand how a 3D printer affects air
quality is to measure the contaminants in the air while
it is running.
Consider the following areas for risk mitigation:
Ventilation: Fumes and the chemicals present in
them are an immediately noticeable part of 3D printing. Yet, many users of 3D printers have them in their
workspace, in a normal sized room with average HVAC
capabilities. These users, if they are aware of the hazards,
might erroneously assume that they are fulfilling the
need for a well-ventilated area. "'Adequate ventilation'
really means this: Something toxic gets airborne during

use. You need to know what it is, how toxic it is, and
how much ventilation you will need for the amount of
substance you use. You should refer to a material safety
data sheet for this information, and you may need professional advice" (Rossol 2011, 37). Users should not
assume that adequate ventilation is provided by air currents going past the work surface or by working in a
room with a very large volume of air to dilute any contaminants.
Dealing with contaminants in the air is an industrial ventilation challenge, as opposed to one which can
be solved with a regular heating and air conditioning
systems. By definition regular HVAC, which is designed
for human comfort and not workplace ventilation, is not
adequate for air quality in a work space. It is not designed to turn over the air at a rate that would clear contaminants. This would also include contaminants from
3D printers. A general exhaust ventilation or standard
comfort HVAC will dilute particulates over time, but
it will not keep up with the rate of new contaminants
being added to the air during printing. A good example
of the differences between industrial ventilation and
HVAC systems can be found in the idea of air changes

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S u m m e r   2 0 1 7

theatre design

& technology

39


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Table of Contents for the Digital Edition of Theatre Design & Technology - Summer 2017 - Public

Contents
Theatre Design & Technology - Summer 2017 - Public - Cover1
Theatre Design & Technology - Summer 2017 - Public - Cover2
Theatre Design & Technology - Summer 2017 - Public - 1
Theatre Design & Technology - Summer 2017 - Public - 2
Theatre Design & Technology - Summer 2017 - Public - Contents
Theatre Design & Technology - Summer 2017 - Public - 4
Theatre Design & Technology - Summer 2017 - Public - 5
Theatre Design & Technology - Summer 2017 - Public - 6
Theatre Design & Technology - Summer 2017 - Public - 7
Theatre Design & Technology - Summer 2017 - Public - 8
Theatre Design & Technology - Summer 2017 - Public - 9
Theatre Design & Technology - Summer 2017 - Public - 10
Theatre Design & Technology - Summer 2017 - Public - 11
Theatre Design & Technology - Summer 2017 - Public - 12
Theatre Design & Technology - Summer 2017 - Public - 13
Theatre Design & Technology - Summer 2017 - Public - 14
Theatre Design & Technology - Summer 2017 - Public - 15
Theatre Design & Technology - Summer 2017 - Public - 16
Theatre Design & Technology - Summer 2017 - Public - 17
Theatre Design & Technology - Summer 2017 - Public - 18
Theatre Design & Technology - Summer 2017 - Public - 19
Theatre Design & Technology - Summer 2017 - Public - 20
Theatre Design & Technology - Summer 2017 - Public - 21
Theatre Design & Technology - Summer 2017 - Public - 22
Theatre Design & Technology - Summer 2017 - Public - 23
Theatre Design & Technology - Summer 2017 - Public - 24
Theatre Design & Technology - Summer 2017 - Public - 25
Theatre Design & Technology - Summer 2017 - Public - 26
Theatre Design & Technology - Summer 2017 - Public - 27
Theatre Design & Technology - Summer 2017 - Public - 28
Theatre Design & Technology - Summer 2017 - Public - 29
Theatre Design & Technology - Summer 2017 - Public - 30
Theatre Design & Technology - Summer 2017 - Public - 31
Theatre Design & Technology - Summer 2017 - Public - 32
Theatre Design & Technology - Summer 2017 - Public - 33
Theatre Design & Technology - Summer 2017 - Public - 34
Theatre Design & Technology - Summer 2017 - Public - 35
Theatre Design & Technology - Summer 2017 - Public - 36
Theatre Design & Technology - Summer 2017 - Public - 37
Theatre Design & Technology - Summer 2017 - Public - 38
Theatre Design & Technology - Summer 2017 - Public - 39
Theatre Design & Technology - Summer 2017 - Public - 40
Theatre Design & Technology - Summer 2017 - Public - 41
Theatre Design & Technology - Summer 2017 - Public - 42
Theatre Design & Technology - Summer 2017 - Public - 43
Theatre Design & Technology - Summer 2017 - Public - 44
Theatre Design & Technology - Summer 2017 - Public - 45
Theatre Design & Technology - Summer 2017 - Public - 46
Theatre Design & Technology - Summer 2017 - Public - 47
Theatre Design & Technology - Summer 2017 - Public - 48
Theatre Design & Technology - Summer 2017 - Public - 49
Theatre Design & Technology - Summer 2017 - Public - 50
Theatre Design & Technology - Summer 2017 - Public - 51
Theatre Design & Technology - Summer 2017 - Public - 52
Theatre Design & Technology - Summer 2017 - Public - 53
Theatre Design & Technology - Summer 2017 - Public - 54
Theatre Design & Technology - Summer 2017 - Public - 55
Theatre Design & Technology - Summer 2017 - Public - 56
Theatre Design & Technology - Summer 2017 - Public - 57
Theatre Design & Technology - Summer 2017 - Public - 58
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Theatre Design & Technology - Summer 2017 - Public - 60
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Theatre Design & Technology - Summer 2017 - Public - 67
Theatre Design & Technology - Summer 2017 - Public - 68
Theatre Design & Technology - Summer 2017 - Public - Cover3
Theatre Design & Technology - Summer 2017 - Public - Cover4
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https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1967Dec
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1967Oct
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https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1966Dec
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https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1966Feb
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