Expert on Industrial Ventilation Systems

Do you have these troubles atyour workplace?

Are products
being damaged
due to dust
particles?

Is cleaning theworkplace ahassle?

Have you not done yourperiodic checkup andmaintenance on yourventilation system?

Do you haveoffensive odorsthat put workers
at risk?

Is it hard to work
during the summer
due to accumulatingheat and humidity?

Is machinery
malfunctioning
from dust andoil vapor,lowering yourwork efficiency?

1

Have you
installed dust
collecting
equipment, but
it is not being
effective?
Do you have difficultycollecting dust due tohaving multiple
ventilation
requirements?

Yoshida Industry
Expert on Industrial Ventilation Systems●Improvement of the workplace environment will lead to ahealthy environment for workers as well as efficientmanufacturing and better product quality. However, there is noone-size-fits-all solution. Solutions for problems in the work
environment are specific to each facility and their needs.

●

Yoshida Industry provides industrial ventilation systems that
purifies the air in the workplace. We are an expert in a diverse
range of industries, providing clients with application-specific,high-quality solutions to their air and environmental technology
issues, such as extracting, dedusting, conveying, purifying andflue gas. Using our expertise, we estimate, design, fabricate, andinstall customized air pollution control systems that are tailoredto each specific need.

●

All in one
With our systematic consultation, the ventilation system can bemuch more affordable with less consultation-installation time.

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Free consultation
We offer on-site inspection and consultation for free, andprovide suitable solutions.

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Quick and prompt response on 24/7
We offer prompt customer support for troubleshooting andmaintenance.

2Our Works
Table of Contents

1)

Local Exhaust Ventilation System - page 4●●●●Dust (woodworking, metal grinding dust, rice bran, etc.)
Organic solvents (toluene, thinners, methyl ethyl ketone, etc.)
Vapor, fume
Regulated chemical substances (asbestos, chlorine, cadmium,cyanide, hydrogen fluoride, hydrogen sulfide, etc.)
Ventilation systems are required by law in facilities using regulated chemical substances.

2)

Air Ventilation - page 5●

Open-style Push-Pull ventilation- Where a normal ventilation system cannot be installed●Closed Push-Pull ventilation- Multiple ventilation requirements in one place●3)

Retractable Exhaust Ventilation / Paint Booth - page 6-8●●4)Retractable local exhaust ventilation
Retractable paint booth

Cleanroom - page 9-12
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●5)

Temperature, humidity, and odor control

Custom-made design
Partial cleanroom
Movable, retractable unit

System maintenance and management - page 13●●

Regular inspection and maintenance
Document preparation for authorities

Regular inspection and record are required by law in order to maintain the function ofthe ventilation system and the quality of the workplace environment.

3Complete Industrial Ventilation System Dust, Vapor, Fume Control●●We design and install ahigh-performance andefficient ventilation system
We incorporate customer
requests for duct placement
and easy maintenance

After

BeforeA considerable amount of dust wasgenerated in the facility. Because thecapacity of the existing duct collectors
was insufficient, air quality was low and it
required a mask and glasses.
Furthermore, dust collectors wereinstalled on the 2nd floor, so the disposalof collected dust required a significant
amount of work.

With an improved dust collection
capacity, custom-designed ductlayout, and suitable dust collector
placement, there was significant
improvement in air quality and work
efficiency. Noise issues were also
resolved.

4

Push-Pull Ventilation/Paint Booth

Push
PushHood
Hood

Sends filteredclean air into
the room.

Push–pull ventilation
system consists of thepush jet and the pullexhaust which creates air
flow within the room,
removing floating
particles and organic
solvents.
Pull Hood

Exhaust duct

In the case where industrial fanscannot provide enough ventilation,
push-pull ventilation might be anoption.
Push-pull ventilation is effective when a ventilation hood cannot
be installed near the source or if there are multiple ventilation
requirements in one place. It can provide efficient and costeffective control in conjunction with local exhaust and can beused for dust and weld fume collector or for paint booth.

5Retractable Local Exhaust Ventilation

Transform one section of your workplace into an efficient local
ventilation system or paint booth. We design a custom-madebooth for limited space or for large objects. It is much more
affordable than having a space specifically designed for those
purposes. It requires much less installation time and will notaffect your work.

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●

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Collapsable
Customizable
Affordable

A retractable booth with a dust
collector setup to process largeobjects.
The booth has a folding system withwheels which moves on rails.

Retracted

Expanded6

Retractable Paint BoothOne of our most popular products is this retractable paint boothsystem. The booth is retractable so that it can be expanded only
when the paint booth is used.
Booth expansion can be motorized or manual.
Retractable paint booth for large objectsBefore
A part of facility was used forspray painting on large steel
materials, but with the existing
exhaust fans it did not function
as ventilated paint booth.

Retracted

Expanded

After
With our folding paint booth withhigh-power exhaust fans, there will beenough exhausting power from anywhere
within the paint booth. The booth itself isretracted when you place large materials
using cranes. For this facility, the boothwas equipped with wheels on a rail only
on one side to maximize the floor space.

7

Retractable Paint BoothOur paint booth removes floating mist containing organic solvents,
which are harmful to the human body. Paint mist particles may
adhere to the products, resulting in product defects, therefore, thepaint booth is essential for painting facility.
Asymmetrical retractable paint booth

Retracted

ExpandedIn the case of a painting booth forindustrial trucks, we proposed thisasymmetrical paint booth to place it
along the wall to utilize all available
space. With one of the rails placed
above the wall, it functions as a closed
paint booth but with floor space along
the wall to be used.

Exhaust fansand ventCustomer satisfaction is our top priority. Using our expertise, wepropose the best possible solutions for your unique situations.

8Custom-made Vinyl Cleanroom●Custom-made cleanroom tailored for your space and needs- It can cover partially within the facility, with customized
shape and size.

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High performance - It offers the same high-quality air
purification environment as the built-in cleanroom.

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Compact and affordable - It can create a high-performancecleanroom with minimal space, time and money.

Partialcleanroom
within thefacility

Smallcleanroom
for a portablewagon

A part of the factory was converted into a cleanroom
to protects products from the floating particles, suchas metal grinding dust and mist. The quality of theproducts has been improved.

9Custom-made Vinyl Cleanroom

4-story highcleanroom
for a satellite
ordered byJAXA

ExpandedLarge cleanroom for a satellite
Partially destroyed by the earthquake, theexisting facility could no longer function
as a cleanroom. As the schedule forlaunching an artificial satellite was set
several years in advance, restarting
operations was an urgent matter. We
completed the construction of a large
cleanroom in a short period of 1.5
months, achieved a cleanliness class thatexceeded the requirements, and wereable to contribute to the satellite launch,which was later awarded by JAXA.

Retracted
Movable cleanroom
When transporting satellites within afactory, it was necessary to maintain theclean environment. To solve this issue,
we created this movable cleanroom
large enough to accommodate a satellite(7x7x10m), which is retractable when
not in use and has achieved cleanlinessclass 10,000.

10Portable Cleanroom‘TSUBAME AIR CLEAN’TSUBAME AIR CLEAN TENT
Following CDC guideline

Durable membrane (F-06032)

••
•••
•

Vent through HEPA filter
More than 12 ventilation / hourPressure difference ≥ 2.5Pa-20°C ~ 80°C
Fire retardant
Chemical resistant
Entrance flap

With a lamp hanging hook

Entrance width:120cm•Wide enoughfor a wheelchair
Electrical outlet(up to 1300 W)
within a tent●●●

Portable positive/negative pressure tent, inflatable with electric air
pump, with ‘high efficiency particulate air (HEPA) filter’
HEPA filter - can remove more than 99.9% of dust, pollen, mold, bacteria,virus, and any airborne particles with a size of 0.1 microns (µm)
Usages: Field hospital, testing clinic, patient isolation, evacuation shelter

TENT

Structure

Double membrane

Material

Polyester with PVC film coating

Color

White/silver

Tensile strength

508 N/3cm with closed shelterWind pressure resistance

9.8 Kpa

Hanging loadLess than 10kg

Other features

Electric air pump: 100 V, 40 W (57 VA), can inflate in 10-15 min11

Portable Cleanroom‘TSUBAME AIR CLEAN’HEPAFILTERINGSYSTEM

Structure

Bactericidal HEPA air filter (TACT001-OX, waterproof)

Function

Positive/negative pressure

Filter efficiency

99.9% removal of particles with a size of 0.1 µm with 17 m³/min flow

Power consumption

100 V, 155 W (221 VA)

Air flow/Static pressure

Maximum air flow 23 m³/min, maximum static pressure 815 pa

Other features

An electrical outlet (up to 1300 W)

TSUBAME AIR CLEAN ROOM
Folding Frame

Fits one bed
Good for isolation spacewithin a multiple-bed
hospital room

Compact, lightweight,and easy to store
Negative insidepressure
Prevents airbornetransmission

Flame-resistant, antistatic
clear vinyl coverEasy to observe inside
Easy to move with casters
Good for patienttransportation●●Window forpatient care

Entrance

Portable positive/negative pressure unit and folding clear
vinyl cover with casters
Usages: Isolation space within the room, transportation ofpatients12

Consultation for
Industrial Noise Complianceand Maintenance

We offer inspection and consultation for industrial noise
compliance . We provide the right solutions for your facility withexpert sound level management.
BeforeAfter
Acoustic insulation

Vent

After

Muffler

Acoustic insulation

Compressor

Noise issues of the dust
collector
The placement of a muffler
and acoustic insulation
reduced exhaust noise by
more than 15 dB at thesource (80dB), and by
more than 10 dB at theexhaust vent.
Noise issues of the fansin the compressor room
Acoustic insulation placed
within the exhaust ducts
reduced noise by morethan 20 dB at the source(91dB), and by more than
10 dB at the exhaust port.

We conduct inspections and maintenance and help prepare
documentation.

MaintenanceInspection

13Inquiries

TEL: 0256-92-6032
FAX: 0256-92-6682
Address: Yoshida-Hokkedo 1853-8,
Tsubame, Niigata 959-0214, Japan
Email: t.yoshida@k-yoshida.co.jp
Web: https://www.k-yoshida.co.jp/
Blog: https://www.k-yoshida.co.jp/blog/●

We are open to anyquestions and commissions.
Feel free to contact us.

●

We offer on-site inspection
and consultation for free,anywhere within thecountry!
14https://www.k-yoshida.co.jp/